Archive of Our Own

One of the most important days for demons was the Day of Classification, it was a moment when every young demon would learn of their talent, destiny and purpose in the hierarchy of the Underworld. These subclasses embodied the Seven Deadly Sins—Wrath, Lust, Pride, Greed, Envy, Gluttony, and Sloth—each granting demons their unique abilities. Isagi had trained for this moment for years at the academy, pouring all his time and energy into combat training, inspired by the greatest Wrath demon in all of underworld, Noel Noa, who was the epitome of everything Isagi strived to be. 

Deep down, a tiny part of Isagi was worried. Comparing himself with the other demons interested in combat, his wings were smaller and his frame was leaner. He knew he lacked brute strength but he was convinced he made it up with his wit, determination, and ego.

Isagi snaps out of his thoughts when his name is called, stepping forward as his tail swishes nervously. Their headmaster, Ego Jinpachi, a towering demon with wicked black eyes, the gleam sharp despite being behind a pair of glasses. Beside him was a glowing black crystal. It was that crystal that would reveal Isagi's true classification.

He stands there, fixated on the crystal, waiting for it to glow red—the color of Wrath. But instead, a soft pink radiance suddenly ignites within it. The hall is silent as Ego announces, "Lust."

Isagi feels his heart drop, literally crumbling amidst the temporary silence. He blinks, feeling his breath hitch in his chest. This had to be a mistake. He had trained so hard to become a fighter, a warrior for the Underworld’s Combat Unit. Instead, he felt blindsided, being assigned to the lowest tier of demons—those who seduced, charmed, and manipulated their way through. 

He wanted to argue but somehow he knew his place as Ego looked at him blankly, waiting for him to leave before calling the next person.

He hears the snickers as he stumbles back to his spot in the hall, his head hung low. He barely registers the rest of the ceremony.

Later that evening, Isagi sits alone in the academy’s empty training pit, staring down at the ground. His mind replays the moment the crystal had lit up and Ego’s voice over and over again.

During the ceremony, he watched as Bachira and Nagi were assigned Greed and Wrath respectively, in which these could lead to roles related to sorcery and combat in the Unit. Nagi’s subclass was a total shock to him, he knew he shouldn’t judge, but he thought the boy would definitely be Sloth given his lazy attitude.

And then, immediately his friends were already sent off to their new class schedule, perks of being high-class, unlike him, he thought to himself negatively. How could he face his friends again? The promises they made—how they’d together to reach the top ranks of the Underworld.

"Isagi," a calm, familiar voice interrupts his thoughts.

Isagi looks up to see Sae standing above him, the golden tassels linked on his dark uniform gleaming faintly in the low light.

For the first time, Sae’s large wings seemed intimidating, the wide span casting a shadow where he sits.

"Sae…" Isagi mutters, quickly looking away.

Sae sits down beside him. For a moment, neither of them speaks.

Sae graduated from the academy two years ago. And obviously, he was classified as Wrath—even before he had his subclass, the Combat Unit had eyes on him with his natural skills.  Now he was often on missions into the human realm and protecting the Underworld from any threats, but like now, he had some time to observe the future graduates.

"So," Sae finally says, "I heard you got classified today."

Isagi winces, his tail curling around himself. "Yeah," he says bitterly. "Lust. The most useless subclass there is."

Sae tilts his head, raising an eyebrow. "Is that what you think?"

"It’s what everyone thinks," Isagi shoots back, his frustration bubbling to the surface. "Lust demons don’t fight. They don’t collect souls. They just… flirt and seduce and manipulate. You’d think they’re lukewarm too."

Sae regards him for a long moment, his teal eyes unreadable. "You’re wrong," he says simply.

"Lust demons aren’t weak," Sae continues. "I’ve seen them in action, they play a different role. Weakening mortals’ will and breaking them from the inside out."

Isagi frowns, his shoulders slumping. "Maybe. But it’s not what I wanted. I wanted to fight—be part of the Unit, like you. I wanted to be strong."

Sae sighs, leaning back on his hands. "Isagi, you can still be strong. Like I said, Lust demons can control the field. A game changer, if you will."

Hearing those words, Isagi feels a little better, looking back at the other who’s staring right back at him. "Hmm…that does sound important."

"And besides…" Sae trails off as if in thought before continuing. "I’ll help you with it."

Isagi looks at him, confused. "Huh? How?"

"You can practice on me."

Isagi’s face turns crimson, his tail whipping behind him in embarrassment. "W-What?!"

"Your charms," Sae says, his gaze drifting to the empty fighting pit. "You're going to need to learn how to use them if you want to survive out there." He looks back at Isagi, his expression as neutral as ever, but a rare, almost imperceptible smirk tugs at the corner of his lips. "If you can even pull it off, that is."

Isagi gapes at him, taken back by his words, but the offer to train with Sae again, however, is too tempting to ignore. "You’re serious?" he asks, his voice tinged with disbelief. A spark of excitement flickers in him at the challenge.

"Completely," Sae says, his expression calm but his eyes with a rare glint of amusement. "I know it’s been hard for you to accept, but I’ll help you."

Isagi stares at him, a mix of emotions swirling in his chest. "Sae… why are you helping me?"

Sae shrugs, his gaze drifting to the starry sky. "Because I see potential in you," he says, his voice steady. After a brief pause, he turns to Isagi, his teal eyes locking onto his own. "And because I like you."

The words hung in the air. Isagi feels his heart skip a beat. "You… like me?"

Sae glances at him, then lowers his eyes, his long lashes fluttering as if deep in thought. After a moment, he offers a brief, curt nod, his expression shifting to its usual unreadable calm.

"Figure it out, Isagi," he says, his voice quieter. Then he stands, brushing off his pants. "Come find me when you're ready.

As Sae walks away, Isagi remains seated, his mind spinning. Maybe this wasn’t the path he’d imagined, but if Sae believed in him, maybe—just maybe—he could find his place after all. Of course, he couldn’t give up so easily—Sae was right. He was still himself, his ego, his skills. He’d have to adapt and learn his new abilities to achieve his dreams.

…

And as for the last part…Sae, liking…him? Well, that was a whole different puzzle, but somehow, it ignited a flame within him.

However, Isagi barely had time to dwell on Sae’s words before his new classes began the very next day.

Gone were the combat drills and the exhilarating rush of training he was familiar with. Instead, his days were now filled with lectures on incantations, charming techniques, and the psychology of mortals and their desires.

At first, he tried to focus. Really, he did. But all the endless reading was unbearable. He enjoyed things that kept his body moving and technically he enjoyed studying theories of fighting arts and combat theory but this was entirely different. Every passing hour made him miss the simplicity of wielding a blade.

A few uneventful days passed before something strange happened. That night, as he was getting ready for bed, he catches a glimpse of himself in the mirror—and freezes.

There, faint but unmistakable, was a swirling shining pink tattoo on his lower abdomen. The intricate lines almost seemed alive. The lines form into what appears to be a heart shape. His pulse quickens he looks down at himself, staring at the mark in confusion.

He had seen this before.

Frantically, he flips through one of his class manuals scattered on his desk, his fingers tightening around the pages before he finds what he’s looking for.

It was the mark of a Lust demon’s awakening—a physical manifestation of their powers finally taking root. His chest tightens as he reads further. Lust demons didn’t generate power on their own; they required external sources to sustain themselves.

Souls. Or sexual essence.

The weight of that realization has his chest tightening.

He barely sleeps that night, tossing and turning as his mind keeps thinking and thinking. And just when he thought it couldn’t get worse, the next day’s lecture proved him wrong.

"For those without a steady source of essence," the instructor says, "the consequences are serious. A demon of Lust who does not have enough essence will gradually lose their powers. Then their form will shrink until they’re nothing more than a speck of dust."

Isagi swallows hard.

The professor continues, unbothered by the students' growing murmurs. "For those who do not have regular partners, there are designated establishments where they may safely obtain what they need."

In other words—a brothel.

Once again, that night, he lies in bed, staring at his ceiling.

The idea made his skin crawl. He knew some of his classmates had already started visiting the brothels, treating it like nothing more than another part of their studies—and practically survival. But for him? The thought of seeking out strangers for something that was so personal made his stomach swirl uneasily.

Which left him with only one other option.

His thoughts drift back to a certain teal eyed demon.

Sae, who has always been cool and collected. Sae, who had said he liked him. Sae, who had offered to help.

That’s what he meant, right? 

Despite already graduating, Sae still acted like a mentor to him, keeping an eye on him and giving him tips with his sparring back then. That night, he had said Isagi could practice his new abilities on him, but he must have known this was coming too.

It wasn’t like Isagi had other choices.

That night, before he over-thinks himself out of it, he picks up his phone and sends Sae a message.

Isagi: Hey Sae, can we meet up?

The following evening, Isagi invites Sae to his dorm room. Sae steps inside, his well-fitted dark uniform a stark contrast against the casual, slightly messy state of the room. He stands with a hand on his hip, eyes sharp as they settle on Isagi.

"You wanted to talk?" Sae inquires, his voice calm as ever.

"Yeah... it's about what we talked about last time," Isagi mutters, shifting on his feet. His face warms as he struggles to find the right words, his gaze darting away, unable to meet Sae’s.

Sae watches him for a moment, a flicker of curiosity beneath his usual indifference. He tilts his head slightly. "...Your tattoo appeared, didn’t it?"

Isagi’s eyes widen. "How did you—" He stops mid-sentence, realizing hitting him. Of course, Sae must have known this was happening—that’s why he was offering to help. Exhaling sharply, he nods. "Yeah. It did."

Finally, he meets Sae’s gaze head-on. "I need your help."

Sae doesn’t look surprised. If anything, he looks the same as always—calm, composed. But something shifts in the air between them, a quiet tension settling.

"Alright," Sae says simply. "Show me what you’ve learned."

Isagi swallows hard and nods. He focuses, recalling the incantations and charm techniques he studied in class. Summoning that alluring, sensual energy—the very essence of his power—he weaves the words together, his voice dipping into a softer, silkier tone.

Nothing happens.

Sae blinks, unimpressed.

Isagi grits his teeth and tries again, focusing on Sae—on his features, his presence, on how he wants to affect him. He murmurs another spell, willing his charm to work.

Still nothing.

A small twitch pulls at the corner of Sae’s lips. "You’re really bad at this."

Heat crawls up Isagi’s neck, his tail flicking in irritation. "Shut up," he mutters.

Without warning, Sae steps in close. "If you can’t do it with magic yet..."

His breath brushes against Isagi’s ear, sending a shiver down his spine. "Then use your body." Sae’s gloved fingers graze over the base of his horns, teasing lightly.

Isagi bodily shudders at the pleasurable sensation that shoots through him. "N-Not fair," he protests, jerking his head away. Even through the gloves, the touch feels too good.

Sae hums, amused. Then, before Isagi can react, warm lips press against the side of his throat. A sharp gasp tears from him as Sae’s mouth moves against his skin, sucking lightly before pulling away.

His body reacts instantly—wings twitching, tail curling involuntarily.

"You’re sensitive."

"Don’t tease me," Isagi snaps, flustered and more than a little frustrated. He narrows his eyes, determined to one-up Sae for once.

His fingers ghost over Sae’s side, sliding lower, pressing firmly against the muscles beneath his uniform. Lower still—

Sae doesn’t stop him. If anything, a faint glint of interest flickers in his eyes.

Before Isagi can fully process it, Sae’s hand finds his tail, wrapping around the soft fur at the spaded base before giving it a light squeeze.

A startled sound slips from Isagi’s lips as an electric shock of pleasure courses through him. His knees nearly buckle.

"H-Hey!" He flushes, trying to pull his own tail back, wiggling before Sae lets go.

Sae hums playfully, stepping back. "Looks like I win this round."

"You’re not playing fair."

Isagi wants to argue, to snap back with something sharp, but the heat pooling in his stomach makes it impossible. But Sae was right, his magic was still weak, so he had to work with what he had for now, his body—physical touch.

With a slow inhale, he closes the remaining distance between them. Sae normally loathes people getting too close, and the knowledge that he’s allowed to do this sends a thrill through him. He drags his tongue along Sae’s jaw, tasting something sweet and a hint of bitter like matcha. The other tenses, and Isagi takes the opportunity to slide his hands over Sae’s wings, fingers brushing over the thin, sensitive skin.

Sae’s breath hitches.

A grin spreads across Isagi’s lips. "Heh... you’re sensitive too, Sae."

With this light sensual touch, the elevated atmosphere, it suddenly gives him a slight rush of energy—then, it clicks—his abilities don’t just come from consuming essence. The atmosphere itself, the tension between them, also fuels his abilities. 

The air shifts, charged with something thick and heady. The mark on Isagi’s abdomen pulses. His voice mumbles an incantation, recalling one that enhances touch. As he recites the words, his fingers lightly trace Sae’s horns, and the slight shiver Sae gives in response makes something inside him stir with satisfaction.

"Not bad…" Sae breathes out, a little thrown off.

Isagi barely restrains his laugh. Growing bolder, he moves lower, pressing his lips to Sae’s throat, sucking lightly as his hands roam. His fingertips skim over Sae’s chest, tracing the firm muscle beneath before deftly undoing the first few buttons of his dress shirt. He trails his mouth downward, smiling at the Sae’s hitched breaths as he licks and sucks at the revealed skin. Then, his hand slides even lower, brushing against the waistband of Sae’s pants before palming over the fabric.

Sae doesn’t stop him. If anything, his pupils were blown wide, the teal nearly swallowed by the black.

"Mmh…" Sae moans lightly, and at the sound, Isagi feels a rush of fluid between his legs. His face heats up, but he doesn’t stop.

"Relax, Sae…" he murmurs. "You’ve been so tense lately, working too much… Just focus on me."

At that Sae lets out a sigh, eyelashes fluttering as he shuts his eyes, relaxing from his touch and words. He strokes Sae through his pants, feeling his growing erection. He presses closer, continuing to mouth and suck at the other’s neck.

"Sae! Mm—ahh…" Isagi gasps when Sae suddenly grabs his ass, pulling their hips together. A shiver shoots through him as their centers brush, the friction sending jolts of pleasure through his core.

And then, his lust mark pulses again—stronger this time. A sharp, desperate craving for more .

The tension snaps.

Isagi isn’t even sure how things escalated so quickly. At one second, he’s pushing Sae onto his bed, and the next, he’s kneeling between his senior’s legs, fingers trembling slightly as he reaches for the belt.

"This is okay, right, Sae?" His voice comes out breathless.

It’s a little too much, but the sexual energy in the air is intoxicating, clouding his thoughts, filling his head with desire.

"Yes…" Sae’s voice is a little rough, eyes half-lidded. "Don’t you dare stop."

At that answer, Isagi exhales sharply and unzips the other’s pants to free his cock. The weight of it in his hand makes his mouth go dry. Pre-cum beads at the tip, tempting him. He slides his fingers over it, feeling the hot, throbbing length before slickness coats his palm.

"Mm…" Sae exhales, his long lashes fluttering as his eyes briefly shut.

"So… big…" Isagi mumbles, curling his fingers around the girth, in awe at how his fingertips barely wrap around.

"Mhm…" Sae manages to say, a little amused, "...Glad you’re enjoying yourself."

"Shut up," Isagi’s face heats up at Sae’s comment. There’s no time for hesitation, licks his lips before leaning in and parting his lips. The first taste is foreign, but he continues taking in the length, the girth gradually stretching his jaw uncomfortably. He doesn’t stop. He hollows his cheeks, trying to take in more—until his throat protests, and he gags slightly.

Sae shifts slightly, fingers threading through Isagi’s hair, lightly touching his horns. "You don’t have to force it," he murmurs, voice steady as ever despite the situation.

But obviously, Isagi wasn’t stopping now. He wants this—needs this. Taking a steadying breath, he moves again, licking along the underside before sucking in earnest.

The vibrations of his moans around Sae's cock has Sae shuddering, drawing a low groan from his lips. Encouraged, Isagi strokes the base where his mouth can’t reach, fingers slick with pre-cum. His mark pulses wildly now, anticipating and aching with the need to devour whatever Sae gives him.

"Isagi… I’m close." Sae says, and at the same time his fingers rubs Isagi’s horns harder, making the boy dizzy with pleasure.

Isagi sucks harder, desperation curling through him. Half of him is drowning in pleasure, lost in the thick, heady atmosphere surrounding them—but the other half, his demon instincts, burns with need. He craves the essence, the warmth of it settling in his belly, the rush of power lingering just out of reach, waiting to consume him.

When Sae finally spills into his mouth, the rush hits him all at once.

Power.

It burns through him like fire, liquid energy spreading through every inch of his body. His limbs feel weightless, the exhaustion of the past few days—that he never was aware of—wiped clean. His vision sharpens, his senses heighten. He moans around Sae’s cock, swallowing greedily, feeling every pulse of his release sink into his belly. His mark pulses faintly, tingling with satisfaction.

When he’s finished, he pulls off, licking the remnants from his own lips. His gaze flickers to Sae’s length, checking for any remaining essence—but when he looks up, he finds Sae watching him, his expression unreadable.

"You seem enthusiastic," Sae comments.

Isagi, still catching his breath, flushes, "...I didn’t know I needed it so bad…"

Sae doesn’t push about his answer. Instead, his gaze flickers downward. "What about you?"

Isagi stiffens, suddenly hyper-aware of his soaked center. "I-I don’t—"

"Let me." Sae’s voice is unreadable, his hands already moving.

Heat coils low in Isagi’s stomach. No one has ever seen him like this, touched him like this. Embarrassment flares in his chest, but he doesn’t resist as Sae swaps their positions, laying him back against the bed while kneeling between his legs.

Sae palms him first, fingers ghosting over his entrance before peeling away his pants along with his soaked underwear. A shiver runs down Isagi’s spine as his folds are exposed, glistening in the dim light. The sight is almost overwhelming—Sae, with his sharp, beautiful face and tousled reddish-brown hair, positioned between his legs, so close to his dripping pussy.

"Did you already cum?" Sae muses.

Isagi flushes with embarrassment, realizing he has no idea when it happened. Then Sae lifts a gloved hand, biting at the tip to pull it off, revealing his long, slender fingers. The sight is ridiculously hot. He bites his lip. And thankfully, Sae doesn’t wait for an answer—he leans in, tongue swiping up the milky mess he’s made.

Isagi shudders, his thighs trembling as Sae’s tongue laps his folds earnestly before gently prodding into his hole, slipping inside.

"S-Sae… ahh—"

His fingers grip Sae’s hair, brushing against his horns by accident. Sae’s breath hitches, but he doesn’t stop, instead slipping a finger into Isagi’s dripping entrance as he retracts his tongue.

Isagi’s breath stutters, as his finger thrusts in and out while Sae laps his wet folds. The pleasure heightens as Sae slips another finger, stretching him further, then together slowly thrusts in an even pace, while his tongue begins flicking over his neglected clit before wrapping his lips around it completely. He sucks, and Isagi practically jolts.

"F-Fuck! Please, Sae… don’t stop—ahh…close—"

Sae hums in response, enjoying Isagi’s reaction for a moment before focusing again. His mouth works Isagi’s clit, sucking hard while thrusting his fingers, curling up with precision into his sweet spot. Encouraged by the way Isagi trembles, he doubles down—curling, sucking, pressing harder. "Cum for me, Isagi, " he quickly breathes out.

"Sae—I’m coming… ahh—!" Isagi cries out, legs tightening around Sae’s head as he grinds against his face. His orgasm crashes over him in relentless waves, pleasure surging through every nerve.

Sae doesn’t stop, lapping up every drop while working him through his high. Isagi moans, body trembling as the last ripples of pleasure fade.

For a moment, the only sounds are Sae’s shuffling and Isagi’s heavy breaths.

"I thought I was going to suffocate in your thighs," Sae suddenly mumbles then, wiping his mouth with the back of his hand before pushing himself up to grab the tissue box from the nightstand.

"Sorry—I didn’t know it’d feel that good." Isagi flushes, then his eyes trails Sae's form before noticing the tent in his pants. He licks his lips. "…Do you want more?"

Sae studies him for a moment before shaking his head. "Next time."

The words linger in the air, thick with promise. But as Sae pulls out a piece of tissue, his expression softens—just slightly.

"You did good," he says, helping as he helps Isagi wipe down his body before dressing him up.

"...Thanks," Isagi flushes at the praise, unsure what to say.

"I’ll use your shower first."

As Sae turns away, Isagi watches as his larger wings shift. Then, alone, Isagi lifts his shirt up, glancing at his belly. His tattoo was warm to his touch and was now a light pink, temporarily satiated.

He exhales, a sense of accomplishment washing over him as he thinks of what just happened. At his own performance, actually able to charm Sae, physically and with some beginner magic. And finally his mark was finally satiated.

…

And being eaten out by Sae and driven to a mindblowing orgasm.

He turns, burying his face into his pillow.

Next time.

Isagi bites his lip, heart thudding in excitement for exactly that—next time.

And so, a routine began.

Every few days, when Isagi’s mark began pulsing in need again, he’d find himself on his knees, taking everything Sae gave him, lips stretched, mouth full, his body thrumming with heat and hunger. And each time, Sae returned the favour, switching their positions right after, his mouth hot and relentless on his core, hand on Isagi’s thighs and ass as he ate him out.

Then, there were times when their needs were mutual. And they wanted to be efficient.

In those moments, Isagi got on top of Sae in a 69 position, his lips stretched around Sae’s cock as he lowered himself, taking him deep, massaging and kneading the strong, thick thighs that he—before—could only dream about touching. And, Sae’s tongue worked between his thighs, licking him open with slow, deliberate strokes before thrusting in two fingers curling into sensitive spots. They moved together and then they came together, bodies trembling from the bliss.

There was one time when Sae had simply grabbed Isagi’s waist, lifting him effortlessly onto his face, letting him sit there while his tongue lapped, sucked with such ease and precision Isagi nearly lost his mind. At first, he’d been mortified, reduced to an embarrassed, squirming mess—but Sae had held him tight, iron grip on his ass while he ate him out.

Then there was the time Sae had rushed off for a work emergency, barely fastening his belt as he stood to leave, his lips still glistening with slick. Isagi hadn’t even had his fill of essence from their session yet—the audacity.

So, the next time they met, Isagi made sure to wring Sae dry—twice.

In just a few weeks, Isagi was improving in all factors, his magic sharpening with each passing day. His ego soared as even his classmates and instructors began to take notice of his progress—his focus had shifted from combat to mastering new charms and spells. Things were going well; his needs were being met, and his energy never faltered. Everything was perfect.

And the only bad part?

He liked it. Maybe too much.

Naturally, they kept pushing further. Hands exploring, mouths claiming, touches lingering. It was intoxicating—the way they moved together, like they were in perfect sync, instinctively understanding each other’s desires.

But there was one thing they hadn’t done yet.

One thing Isagi knew, deep down, would give him more than anything he’d taken before.

Instead of orally, what if he accepted…

Essence, directly inside him.

…

Another night, Sae was between his legs again, fingers stretching him open, mouth hot and wet as he sucked on his clit, making Isagi squirm. The sensation was phenomenal, but tonight…

"Can we do more?" Isagi asks suddenly, voice breathy.

Sae pauses, glancing up at him curiously.

Isagi swallows, cheeks burning. "...You know," he mutters, shifting from Sae’s gaze. "Don’t make me say it."

"...Hmm…I’m afraid I don’t," Sae says coolly, but there’s a playful glint in his eyes.

"Ugh, you’re such a bully," Isagi grumbles, yanking him up by his shirt, his hand trailing down his sternum just to the top of his pants before pulling away, eyes locking with Sae’s. "Just—" His voice lowers. "...gimme your dick."

Sae lets out an amused chuckle, but he obeys. He shifts, rising onto his knees, and Isagi leans back on his elbows, watching as Sae pushes his pants down.

Isagi’s breath hitches. Even though he’s seen it countless times—felt it on his tongue, down his throat—the sight of Sae’s big cock still made his belly hot with anticipation.

"Now what?" Sae gently trails his fingers down Isagi’s wet folds, gathering the slick. "You’re so wet…"

Isagi’s insides clenches around nothing, his whole body aching. He kicks lightly at Sae’s shoulder. "Stop teasing. I’m ready—just put it in…"

Sae stills. "...Isagi, you really want this, don’t you?"

For the first time, he sounds flustered.

"Yes, I do! Hurry," Isagi leans further back onto the bed, his leg wrapping around the other's hip, trying to pull him in. "I want your dick so fucking bad."

"Fine." Sae breathes out, cheeks dusted with a light pink.

Sae gives himself a few strokes as he watches Isagi with a heated gaze. Face-to-face like this, it feels different. More raw. More intimate. But Isagi wants it—wants him—so badly he can barely breathe. 

His heart pounds as Sae lines up, the thick, flushed head pressing against his entrance, warm and slick.

Then, slowly, he pushes in.

A sharp gasp tears from Isagi’s throat, his entire body tensing as he’s stretched open. Fuck, fuck, fuck—

His hands fly up, clutching at Sae’s shoulders as he takes it, as his walls squeeze tight around the thick, unrelenting heat pressing into him.

Sae takes this moment to bring a hand up, rubbing his horns to distract him.

A sharp, broken cry rips from Isagi’s lips. He jolts, his whole body twitching from the unexpected jolt of pleasure.

Sae lets out a breath. "Relax. You’re squeezing me so tight…"

Isagi feels dizzy, trying to relax as each inch slowly breaches him. His inside unconsciously squeezes and grips, trying to adapt to the thick girth. His tail curls instinctively around Sae’s while his legs wrap around his hips, locking them together. Finally, Sae bottoms out inside him, and—fuck—he’s so full.

"F-Fuck…" Isagi gasps, legs trembling. "Sae…it feels—ahh…so full…"

"Mm…so tight, h-ha…" Sae exhales shakily, regripping his hold on Isagi’s thighs. "Isagi, are you okay?"

Isagi nods quickly, his legs tightening around Sae’s waist, urging him to move. "Move…please," he breathes.

Sae starts moving, pulling back.

And then—

The first thrust has Isagi seeing stars. The drag, the stretch on his insides—it’s too much, too good. His mind goes blank, nothing but sensation, nothing but Sae and his cock.

Their tails twist together as their rhythm builds, bodies locking in sync. Each thrust sends Isagi reeling, his moans breaking into soft, helpless whimpers. "Mmm, Sae…so good—ahh, faster—don’t stop…" Isagi pleads.

With that Sae obliges, increasing his pace, cock being enveloped by Isagi’s wet, hot insides, each push squeezing him in all the right spots, as if trying to keep him in.

Then when his cockhead unexpected hits at a certain spot, Isagi’s whole body shakes, a spark of pure pleasure runs through his spine, activating each neuron down to his fingertips. "Shit—Sae!" Isagi wails out.

"So fucking good…Isagi—"

Sae’s breath hitches, a low groan escaping his lips while his hand moves to rub tight circles over Isagi’s swollen clit. His pace quickens then, each thrust driving him deeper, ramming against his sweet spot. The sharp slap of his testicles against Isagi’s ass echo along with the dirty squelches between them from the pre-cum and slick. They fell into an erratic rhythm, every move and touch amplifying the next, unraveling them into a cascade of raw desire.

"H-Ha…I’m close—" Sae rasps out, gone was his usual collected tone.

"In-Inside—please!" Isagi begs.

Sae grips Isagi’s hip harder, fingers digging crescents into the soft skin as he teeters on the edge. And then, with one final snap of his hips—

He cums.

Isagi feels the heat surge deep within him, the rush of release flooding his insides, painting his walls white.

The effect is immediate.

A wave of raw, intoxicating power courses through his veins. His body jerks, eyes rolling back as pleasure coils, tightens, and then erupts. He gasps as hot fluid squirts out of his core while he claws into Sae’s shoulders, his wings—despite being pinned to the bed—fluttering uncontrollably as euphoria crashes over him in relentless waves.

"S-Sae—!"

And then—

Sae kisses him.

Soft. Gentle.

Something inside Isagi breaks.

His entire body burns, the heat searing through him—until, piece by piece, he’s remade into something whole. A perfect fit.

Usually he would feel like a large tide washed over him as his climax overtakes him, but this—this was different. His heart pounds, not from the intensity of release, nor from the essence surging through his veins. It’s something deeper, something warmer. Safer.

It felt better than his orgasm. And literally better than his now lustful body’s way to survive and rejuvenate.

His chest tightens, breath uneven as the realization crashes down on him.

Oh, fuck.

He has feelings for Sae.

There’s only one thing he can do.

As Sae tries to pull back, Isagi drags him back in, their mouths colliding once more. Even as Sae’s length softens inside him, Isagi’s body refuses to let go, gripping him tight and legs locking them together. Sae winces at the sensitivity on his length—but doesn’t pull away. Instead, his lips press forward, his tongue sweeping in, slow and deliberate. Exploring. Claiming.

Isagi melts into it, meeting him shyly with his tongue, tasting the familiar sweetness of him—the faint trace of matcha that Sae liked to drink.

"S-Sae—" he involuntarily moans into his mouth, still sharing their deep kiss.

When Sae finally pulls back, Isagi’s body instinctively absorbs every last drop of essence, his lust mark pulsing stronger than ever, thrumming with newfound intensity. Nothing is wasted, devoured and claimed by his body.

Sae pauses. A flicker of something unreadable crosses his face before he tilts his head slightly, studying Isagi with quiet curiosity.

"Was that okay?"

Okay? It was everything.

"Yeah," Isagi breathes, his voice softer than he expects. Warmth lingers in his chest, spreading through every part of him, refusing to fade. Sae looks at him differently now—softer. And it throws him off.

His gaze flickers away, embarrassment creeping in, but Sae doesn’t press. Instead, he shifts to the side, easing his weight off Isagi without a word.

Isagi wasn’t supposed to be like this. He just had Sae buried deep inside him, had choked on his cock more times than he could count, but now? Now he was getting flustered over a damn look?

A few minutes pass, both of them catching their breath.

Isagi lay on the bed, eyes closed, breathing heavily, the cool air brushing against his skin as he tried to steady his pulse.

His body felt lighter, renewed, yet something had shifted deep inside him—like Sae’s dick had literally changed his body chemistry. He hadn’t expected it to hit him like this. The euphoria of the moment still lingered, but now his mind was sharp, focused in a way it hadn’t been before.

As much as he tries, his heart thumps harder, and he couldn’t help the smile that tugged at his lips despite himself. He liked Sae. No, he really liked him. He had admired him before, but now, after everything, it was undeniable. Sae was always so cool and collected, like someone untouchable, out of his reach—but now, he was right beside him. He could not deny his heart for feeling this way.

But... how could he possibly tell him?

Sae was in a different league. He was older, stronger, a Wrath demon with more experience than Isagi could ever claim to have. It was just two years. But time and time again, Sae was always praised by instructors for his natural skills and abilities.

And Isagi was just a Lust demon. His powers relied on seduction and charm, not on strength or battle prowess like Sae’s.

Could he really ask for more? Would Sae ever see him as more than just someone to help with his powers? The way he had cared for him, touched him—it had felt so good, so right, but was it just... physical? 

The truth gnawed at him. He didn’t want it to be just that.

He needed more time. Time to figure out how to win Sae’s heart, how to show him who he really was. He wanted to prove he could be more than just a younger kouhai, a junior to help out.

Sae shifts beside him, breaking his train of thought for a moment. Isagi glances over just as Sae steps away, grabbing his wrist.

"I’m just getting a towel to clean up," Sae says.

"…Right," Isagi responds, his voice distant. He releases Sae’s wrist, watching him head toward the washroom.

Right.

That was the usual routine.

Isagi takes a deep breath, trying to steady his racing thoughts. To Sae, he was just a junior—someone he wanted to help, someone whose presence he could tolerate, maybe even like. It stung a little. But still, Isagi knew he had to hold on to this—this feeling.

He wouldn’t give up easily. It wasn’t like him to give up. Perhaps this was why he was classified as Lust…to make Sae see and fall for him. With that, things were all aligned.

He was going to make Sae fall for him.

With what he knew now.

That night, he brainstorms relentlessly, ideas flooding his mind and spilling onto the pages of his notebook.

The title at the top of the page reads:

Isagi’s Spicy Seduction Operation – Make Itoshi Sae Fall in Love

Mission One: View for Life

A few days later, Isagi shows up at Sae’s place under the flimsy excuse of needing to use his shower.

Now, he stands in front of the mirror, adjusting the hem of Sae’s black dress shirt. It’s just a little too big, draping off his frame in a way that highlights his collarbones and offers a teasing glimpse of his thighs and ass. This had to be it. Sae was an ass guy. And he needed Sae to realize this was a sight he should want to see every day.

For the rest of his life.

Stepping out of the bath, Sae pays him no mind, face illuminated from the screen as he checked his own phone.

Isagi drops his own phone, purposely.

Clack.

He feels Sae’s gaze shift toward him. With a sly grin, Isagi turns and leans down, shamelessly flaunting his ass, his tail rising alongside it as he picks up his phone.

Sae glances up.

His bored gaze sweeps over him once, then settles in with a flat tone. "Why are you wearing my clothes?"

Not the reaction Isagi was expecting.

"Because they’re comfortable," he replies, keeping his tone casual as he picks up his phone, his eyes catching the way Sae’s gaze lingers a moment too long on his ass.

Gottem.

"You have your own."

Okay. Not the point—and how was Sae blatantly staring at his ass but still asking something totally different? This dude really had the master poker face.

Isagi rolls his eyes and strides forward, making sure the hem of his shirt lifts just a little more. When he reaches Sae, he straddles his lap, pressing against him.

"Why? You want it back?" he murmurs, voice low and teasing.

Sae’s fingers twitch against his phone. His eyes sweep over him again—this time, lingering. The way the fabric slips off his shoulder. The bare skin of his thighs. The way he’s sitting directly on his crotch.

"You're ridiculous," Sae mutters, tossing his phone aside and his hands move, sliding up Isagi’s legs, gripping his waist.

"And yet you're hard," Isagi says smugly, feeling the thick press of him beneath him.

Sae sighs. Then he pushes the shirt up, exposing everything, fingers tracing over his nipples and slim waist before gripping his hips. He touches the light pink tattoo on his belly.

"We just had sex a few days ago, you are rejuvenated. But you should rest."

"Ugh—it’s fine," Isagi says, then he smirks, "Maybe you didn’t satisfy me enough."

Sae lets out a slight huff. Then, without warning, he flips Isagi onto his back. The weight of him pins him down, heat surging between them.

"You little brat. If you wanted to get fucked, you should have just said so."

He pushes down his pants and presses the thick head of his cock against Isagi’s entrance, teasing, rubbing against his slick heat before sinking in.

Isagi gasps, legs wrapping around him instinctively. One deep thrust stretches him open, the overwhelming fullness stealing his breath.

"Fuck—Sae—" 

Sae doesn’t give him time to adjust. His hips set a steady rhythm, each roll driving pleasure through him. The fabric of the shirt bunches between them—the only barrier keeping Isagi from being completely bare beneath him.

Isagi moans loudly, fingers clawing at his back as Sae continues thrusting, pounding at his sweet spot as his mouth kisses and sucks at his neck.

"I’m close—"

The moment he cums, he moans Sae's name and Sae follows right after, releasing from the spasming walls around his cock. And like always, the essence pushes Isagi to an extended orgasm, pulling Sae closer as he rides out his high.

After a moment of heavy breaths, Isagi's mind clears, recalling his mission and his current state.

"Sae…" he weakly mumbles out. "What do you think of me in your clothes?"

"It’s pretty sexy," Sae murmurs against his neck, biting down just hard enough to make Isagi jolt. 

"Don’t you wanna see me in your clothes, dressed up like this forever ?" he breathes out, barely coherent.

"Yeah…I do." Sae admits, trailing his hands over Isagi’s side.

At that Isagi beams. The confession was coming right? Sae literally said he wanted to see him daily, dressed like this for all the upcoming days. He had to realize his feelings now.

"I’ll send you more clothes."

Isagi’s smile freezes. "Huh?"

"I’ll buy you a whole wardrobe of my shit," Sae says casually—as if he’s literally not balls deep in Isagi.

"…That’s not—" he squeaks.

"Color preference?"

"…"

"Black? Or do you want navy?"

"Sae, what—no!"

Sae hums, completely ignoring his distress. "I think you’d look good in burgundy."

Isagi gapes at him. He was expecting a confession. A realization. Something. Not a fucking shopping offer.

His seduction mission had failed. Miserably.

And Sae was still inside him, casually discussing color palettes.

"That—That’s not what I meant," Isagi groans.

Sae kisses his neck, clearly unfazed. "Burgundy it is."

Mission Two: Equal in Power

Okay, so the last mission failed, and all he got was a bunch of clothes— no pants included. But Isagi had more tricks up his sleeve. It was time to put his new magic and skills to the test—to show that he was just as strong as Sae. They were definitely partners meant for each other. They were already so compatible in bed, so it only made sense that everything else should follow suit. Now he just needed Sae to realize that.

Isagi had invited himself over to Sae’s place again, now sitting on his bed, legs tucked beneath him. He whispered the incantation under his breath, his fingers tingling with the magic. The air around him hummed, thick with the spell’s energy.

He had studied this one carefully—a charm designed to heighten sensation, to make every touch, every thrust, feel ten times more intense. Sae was always so composed, so in control. But what if, just for once, he could shake that?

The spell settles into place just as Sae walks in, fresh from his shower. His hair is damp, bangs falling just right to give him an effortlessly adorable look. A white towel is wrapped around his waist, barely covering his lower half, leaving his muscular torso and chiseled abs on full display—Isagi can’t help but stare, his mouth going dry.

"You look like you're up to something," Sae mutters, narrowing his eyes.

"Me? Never," Isagi says innocently, already reaching for him. He pulls Sae onto the bed, climbing into his lap, rolling his hips experimentally.

"What—" Sae’s voice cut off as a shiver ran through him. His hands grips Isagi’s waist—harder than usual. His pupils dilates, his breath catches, and his body tenses like he’d just been struck with something electric.

Isagi smirks, testing it by running his fingers up Sae’s chest. The way he twitches beneath him was proof enough that it worked.

"Something wrong?" Isagi teases, pressing a slow, open-mouthed kiss to Sae’s jaw.

Sae exhales, rough and shaky.

"You did something," he grits out, obviously distracted by the enhanced pleasure.

Isagi just grins, whispering in Sae's ear, his lips trailing along the shell. "So what if I did?"

Sae doesn’t get the chance to reply before Isagi recites another spell, and Sae’s arms are bound with a pink aura to the bed. It’s so convenient that Sae just showered, half-naked with his entire upper torso on display. Isagi leans forward, trailing kisses down from his neck to his belly button before leaning back up to suck on a pink nipple.

"Mhm—Isagi…" Sae gasps, his usual indifferent expression shattered as struggles against the magical restraints.

Isagi grins at the reaction, continuing to suck and lick at the hardened nub while bringing his other hand up to twist and pull at the other nipple.

"Let me go, Isagi," Sae struggles lightly in his bindings, squeezing his eyes shut.

Then, Isagi notices the prominent bulge in the white towel. Taking advantage of it, he practically rips the towel off, revealing Sae’s cock, hot and leaking with pre-cum. He gives it a stroke.

"All hard just for me~" Isagi coos, his insides clench with anticipation.

Isagi doesn’t waste any time, straddling him—once again, so convenient that he practically doesn’t wear pants around Sae anymore—and sinks his dripping pussy down onto his cock. The reaction is immediate—Sae throws his head back, hands jerking in their restraints as his body shudders from the overwhelming, pleasurable sensation.

"Fuck—Isagi—"

Isagi braces his hands on Sae’s abs, riding him slowly, teasing, feeling every thick inch stretching him open. The spell worked almost too well—he could feel how desperate Sae was, how every roll of his hips made him tremble. Sae’s tail was thrashing uncontrollably, and he uses that opportunity to grab it, cradling it into his arms before putting the spaded base into his mouth, licking and sucking at the twitching appendage.

"S-Shit, Isagi—ha…," Sae groans, long lashes fluttering from the pleasure.

"Feels good, huh?" Isagi taunts breathlessly, pulling out the base a little out to suck and bully the tip, while he strokes the rest of his black tail. His hips continue moving up and down on Sae’s cock, forcing the man to take all the pleasure. "Bet you’ve never felt like this before."

Sae grits his teeth, trying to hold onto some level of composure, but Isagi could feel the way his body betrayed him—the way his body shuddered, his hips jerked, and obviously, the way his cock throbbed inside him.

"I-Isagi…fuck—let me go…I’m going to—"

Then, as if to reward Isagi for his current conquest, Isagi suddenly feels a surge of warmth Sae cums inside him, his body responding to the rush of heat.

"Oh—ahh…Sae…" He moans at the hot sensation inside him, making sure to squeeze his insides hard to milk him thoroughly. And slowly, he feels as the other softens inside him.

But that wasn’t the end. Not until Sae admitted it.

He whispers another incantation, to revitalize his arousal, and Sae’s eyes widen in surprise at the sensation. "Isagi…what are you—?"

"Admit it, Sae." Isagi moans as he feels the length inside him harden again, with that he begins raising his hips up and down again, using the threat of undeniable pleasure to break Sae.

"Mhmm…haa…I—" Sae groans out weakly from the overstimulation, eyes fluttering shut again.

"Tell me Sae, tell me how good this is. That no one’s ever made you feel this way."

"I-I haven’t…it feels so fucking good…please…"

At the words, Isagi’s body reaches its limit, a wave of pleasure crashing over him, overwhelming his senses as he cums uncontrollable on Sae’s cock, squirting clear release all over him.

And then—something snaps.

The spell wavers. A miscalculation, a break in his focus, and suddenly, the charm lifts.

Sae stills beneath him.

Isagi barely has time to process before he is flipped onto his stomach, face pressed into the sheets, Sae’s hand gripping the back of his neck.

"You charmed me." Sae’s voice was low, rough—dangerous. "I knew demons of Lust were tricky, but fuck—"

Isagi swallows nervously, "It was just—just to show that I’m your ideal partner—"

"We are. You egoist, always just thinking about the Unit—Lust and Wrath complement each other. We’re a powerhouse combination out there."

"N-No—" Isagi shudders, feeling the hot press of Sae’s cock still inside him.

Sae drives into him hard, dragging him back onto his cock with every thrust, fucking him deep and raw, relentless in a way that had Isagi gasping for breath. 

Isagi was wrecked, legs trembling, eyes rolling back at the sheer force of it. The bed creaks beneath them, his moans muffled into the sheets as Sae used him, took back control, made him pay for the trick he’d played.

"S-Sae—!"

He cums hard—so hard it leaves him trembling, his entire body wracked with aftershocks. But Sae doesn’t stop. He fucks him through every shuddering pulse, forcing him to take it all—each deep, relentless thrust driving him further into euphoria until Sae finally follows, spilling inside him, filling him up until he’s left utterly spent beneath him.

And just when Isagi thinks his mission has failed enough—Sae leans down, and kisses him.

Sae hovers for a moment, his lips still ghosting over Isagi’s. Then, he murmurs, "Don’t you dare try that again."

But just as he turns away, to clean them up. His voice drops—softer now.

"…Still. Good job."

Isagi’s too fucked out to think straight, but somewhere in the haze, only one thought lingers weakly.

Sae really was the epitome of ‘beautiful destruction’. And his mission was so ruined.

Mission Three: Double the Trouble

Okay so maybe, just one of him wasn’t enough to make Sae fall for him. Seriously, he needed some backup, Sae was the toughest opponent he ever faced. So surely, two of him could lock Sae down and make him addicted.

Right?

As Sae walks into his home, he stops dead in his tracks.

There are two Isagis.

One lounges on the couch, legs spread lazily, his shirt unbuttoned just enough to reveal a tantalizing glimpse of his chest. The other sprawls across the bed, head propped up on one hand, a mischievous grin playing on his lips. Both of them look at Sae with the same hungry gaze, blue eyes half-lidded.

Sae blinks, trying to process what he’s seeing. "Isagi, what is this?"

The Isagi on the couch chuckles, a low, sensual sound.

"Just testing you," he purrs. "Can you guess which one is the real me?" He winks.

The Isagi on the bed continues, voice a perfect match. "Yeah, can you?" he teases, his grin widening.

Sae’s eyes flick between them, analyzing them briefly. "Hmm…a new spell? Pretty impressive, I really can’t tell you two apart," he admits.

The two Isagis exchange a glance, their smiles turning sly.

"We’ll give you a hint," they say in unison, their voices blending perfectly.

Before he can respond, they move, pushing him onto the couch—one dropping to his knees, fingers deftly undoing his belt, while the other presses close, trailing hot, open-mouthed kisses along his neck and rubbing at his curved horns. A sharp groan slips from Sae’s lips, trying to concentrate, and with his hands, gently cups their faces, feeling the warm, soft skin beneath his touch.

"Fuck…" he mutters, voice strained. "I really can’t."

The Isagi between his legs looks up, eyes gleaming with mischief. "Hmm...I'm feeling nice, so I’ll give you another hint," he repeats, breathing warm against Sae’s skin.

"But if you don't get this, we’ll have to punish you~" the other Isagi finishes.

Then the same one beside him shifts, abandoning his horns and joining his clone below, pulling out his length out of his pants. Two pairs of lips, two teasing tongues—kissing, licking, worshipping his cock slowly on each side while looking up at him, their sapphire eyes big, round and expectant.

Sae exhales sharply. His head tips back, eyes fluttering shut as pleasure overwhelms him. But even as he loses himself in the sensation, a part of him knows —he has to figure out which one is real.

And then it clicks.

With a sharp exhale, he leans forward, gently pushing their wet mouths off of him while he immediately grabs both of their asses in each hand, fingers digging into soft flesh, testing—comparing. 

His gaze locks onto the Isagi still kneeling to his right. "You," he says, voice rough. "You’re the real one."

The real Isagi’s eyes widen, surprise flashing across his face. "How—how did you know?" he stammers, confidence faltering.

Sae exhales, keeping his grip steady. "Yours is a little more… firm, but soft right here ," he murmurs, his thumb pressing into the sensitive inner curve.

"Mhm…" A bright flush creeps up Isagi’s cheeks, but he recovers quickly, his grin slipping back into place. "Fine, you’re right, but…" he breathes, voice dropping into a sultry whisper. "Don’t you wanna see if the inside is any different?"

…

With a fluid motion, Sae pushes Isagi onto his clone, the two of them embracing, aligning their bodies and moaning in union as their chest and clits press together. Isagi shudders at the contact, and before he can react, Sae thrusts inside him—deep, slow, dragging out the first stretch before he alternates between the two of them.

"O-Ohh, Sae—ahh, so good—!"

"A-Ahh—Sae—!"

They moan out simultaneously. But soon enough, Sae focuses all his attention on Isagi—the real one, fucking deep into the tight heat at a rapid pace.

"Sae… s-so good…" Isagi gasps, clinging onto his clone, overwhelmed by the multiple sensations. His pussy is being relentlessly pounded, while his clone’s hot skin presses against him, their sensitive nubs humping together. With the enhanced sensation of his duplicate transferring back to him, it’s too much—he’s feeling too much.

Sae leans in, lips brushing against Isagi’s ear as he whispers, "You’re hotter." He pistons his hips hard, making Isagi’s breath stutter from pleasure. "And tighter… squeezing me like you want me inside forever."

"D-Don’t say it like that—" Isagi stammers, face burning.

Sae lets out an amused huff. "You’re the one who suggested this."

Before Isagi can protest, Sae slams into his sweet spot, tearing a wail from his lips. His clone squeaks and— poof —with a puff of smoke, disappears entirely.

Sae doesn’t stop. If anything, he fucks him even harder now, driving him into the couch with ruthless precision on all his sensitive spots.

"Can’t keep up?" Sae murmurs, kissing and sucking at his shoulder. "You still have a lot to learn, Isagi."

Isagi is too far gone to argue. His moans grow louder, desperate, his body arching into every sharp, calculated thrust. The wet, slick sounds of their lovemaking fill the room, mingling with the rhythmic squeak of the couch as it rocks beneath them.

"Sae… ahh—please… mmhm…"

Once again, his mission failed—literally disappeared in a puff of smoke.

So every few nights, Isagi pushes a little further, testing out new ways to seduce Sae. But each time, Sae is still standing strong, not at all fallen to his charms. With Sae's blunt attitude, he was sure he'd just straight up admit it.

Sure, Isagi gets good sex and a sweet kiss that has him melting, but he needs more. He needs a confession. Instead he's the one internally monologuing each night to himself that Sae is the perfect one for him.

He was trying so hard—honestly his ego was getting a little hurt. The magic, the clothes, the touches—all of it was supposed to lead somewhere. He’s been giving his all, but Sae was still the same. Wasn’t he being obvious enough?

Did Sae really not… feel anything different?

No—he refuses!

Tonight, though, Isagi is going all out. He’s amplified his magic, setting the atmosphere just right. The dim lighting casts a relaxed ambience and a faint, intoxicating scent lingers in the air—one designed to heighten desire. His body hums with power, every fiber of his being focused on luring Sae in.

And this outfit.

Isagi looks down at himself, cheeks burning. He’s practically naked. The black bikini barely covers anything, the thin fabric doing nothing to hide the stiffened peaks of his nipples. The thong is even worse, slipping between his ass, leaving nothing to the imagination. And the thigh-high stockings and elbow-length gloves served no purpose, but something about being covered in just those areas was a thing.

This was the textbook succubus look. 

His tail flicks anxiously behind him as he turns to face Sae, ready to try yet another tactic.

The man just finished showering and was in the kitchen drinking some cold tea to cool down. When Isagi approaches, he looks up. But instead of the usual silent admiration or teasing remark, Sae just... stares. Unfazed.

…

"Are you… okay?" Sae asks, his voice indifferent as ever. He leans back on the counter, completely unaffected by the seductive setup, his eyes lazily scanning Isagi up and down. "What are you even doing?"

Isagi’s stomach twists with frustration. He’s tried everything—the clothes, the flirting, and the charm magic. Has he been doing something wrong? He opens his mouth, but the words come out in a rush, revealing his slight desperation.

"What do you mean? This is normal succubus attire!"

"I know," Sae says slowly, placing down his cup, crossing his arms and then giving a head tilt. "But… also everything else—does school really need to make you dress up and also use all those charms?"

No, it doesn’t. Isagi has been following everything he’s been taught, trying to make Sae fall for him. But nothing’s working. He’s reaching his limit, day by day his ego is slowly crushed, and his patience is now practically gone—he can’t hold it in anymore! Devil take him if Sae rejects him again!

"Yes, I do need to," he musters out, "...Because I’m really, really, really trying to get someone ," Isagi stares at Sae hard now, willing the other to understand his words. "To be interested in me."

Sae stares for a moment, frowning a bit.

"Who?"

Isagi starts tweaking. His wings jitter, his tail flicks erratically, and he literally feels his brain short-circuiting. Was Sae that dense? Was he always this dumb?

"You—I’m in love with you!" Isagi blurts out.

Sae blinks, his face blank, and Isagi’s heart drops. That’s it. He’s made a fool of himself. He should have taken the L and went. All his scenarios failing must have meant something. 

Someone cool like Sae would never like him. Right now would be a great time to just disappear. But no, he’s spent all his time perfecting his charms instead of learning invisibility spells. This was his punishment.

Then Sae finally speaks. "I know, so?"

"What!?"

Isagi is on the verge of melting in a puddle of shame and despair. All the suspense, the buildup—and he knew!?

Sae then looks a little confused, and in any other situation, Isagi would have loved to knock him off balance. Sae shifts in his position. "We’re dating."

Isagi’s mind goes blank, gaping. "What!? How!?"

"These two months, we’ve literally been together," Sae says now, eyebrows furrowed. "I confessed to you."

"...What! When!?" Isagi practically screams, unable to believe what he’s hearing.

"The night your classification was announced," Sae replies slowly.

Isagi freezes, remembering that night. He presses the palms of his hands into his eyes, groaning in frustration. He’s seriously annoyed now. "That!? You call that a confession?"

"Yes." Sae pauses, then quietly mumbles, "...Well, it seems you didn’t figure it out."

At that, Isagi literally glares at him, wings fluttering hard for a moment as his tail thumps angrily.

"It appears there’s a misunderstanding," Sae says, noticing Isagi’s frustration.

Isagi scoffs. "I can't believe it..." He throws himself onto the sofa, burying his face against a shrimp shaped cushion and squeezes it tightly in frustration. His ears burn as he mumbles into it, muffled but clear enough, "Then, you really… like me?"

Sae softens, his gaze turning a little more understanding. Then, he walks over to sit beside Isagi and pets his head.

"Yeah. I like you," Sae says. "I’ve liked you for a while. Since you first stepped up in the training fields."

Isagi literally turns his head, shocked and overwhelmed by the sudden news. "W-What!? That’s... that’s so long ago." He shakes his head in disbelief. "Why didn’t you tell me this whole time?"

"You didn’t ask," Sae replies, flat as ever.

Isagi fumes again, but forces himself to cool down, squeezing and taking all his frustration with his shrimp plush instead. "So… you... you thought we were already together? All this time?"

"Yes."

Isagi’s face heats up at the direct answer, still getting flustered despite everything. Sae has no shred of romanticism, yet he’s still so effortlessly endearing.

Recalling the current topic, Isagi glances at Sae. "Well for me… I realized I was falling for you after you stole my first kiss."

Sae’s face twitches slightly in surprise before he plays it cool. "I did not steal anything, but obviously your first kiss was meant to be mine."

Isagi’s heart flutters at the words, still clutching the shrimp plush. Finally, with Sae’s blunt attitude things were getting somewhere."...Don’t act cool—you caused all this!" He flushes.

"...But I always admired you. You were so cool, I never thought you'd feel anything for me." Isagi admits, lowering his voice.

"I like you as you are," Sae says, his voice firm. "You’re talented and you have an actual brain. Don’t say that I’m wrong for liking you."

"Alright, alright." Isagi huffs, his chest swelling with pride.

Then, like that, the familiar, comfortable warmth bubbles up again. He grins while he leans against Sae’s shoulder, finally abandoning his shrimp plush to hold onto him. His voice takes on a playful edge as he tilts his head up. "You really messed me up, you know. I spent all this time trying to charm you." He lowers his tone, teasing. "Now, you’re going to have to make it up to me."

Sae gives him a sidelong glance, eyebrow raised. "How?"

"You’re gonna have to tell me every day that you like me," Isagi demands with an airy and playful tone. "And call me by my first name!"

"Fine." Sae exhales a breath, then looks at him with an intense gaze, "I like you, Yoichi."

Isagi’s heart skips at the sound of his name, and he leans in, pressing a little closer, his grin impossible to contain. "And you’re gonna have to kiss me every day now."

"As if I didn’t do that already…but fine I’ll entertain you again." Sae cups Isagi’s face, his fingers brushing lightly over his skin, tilting his chin up. He leans in and presses their lips together. The kiss starts slow, soft, and lingering, the heat of it building steadily between them.

Isagi, enjoying the moment, drapes his arms around Sae’s shoulders, his tail playfully curling around Sae’s thigh. "And…these clothes…I wanna go change, but first…" His voice dips, sultry and teasing. "You’ll help me take them off, right?"

Sae’s eyes darken, his grip tightening subtly as he meets Isagi’s heated gaze. "Obviously."

...

"And just so we're clear," Isagi pulls him close, their eyes locked, voice firm yet breathless.

"I really, really like you, Sae."