1 - 20 of 30 Works by OverMach
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Sandrone receives some strange and highly specific gifts from Columbina.
(Alternate title: Material Farming)
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Columbina once again asks Sandrone why she has been avoiding her, and the Marionette struggles to come up with a satisfying answer...
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Columbina just can't take her eyes off Sandrone, even when she really should.
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Butterfly, dance in the sky by OverMach
Fandoms: 崩坏：星穹铁道 | Honkai: Star Rail (Video Game), 仮面ライダーゼッツ | Kamen Rider ZEZTZ (TV), Kamen Rider - All Media Types
21 Jun 2026
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By day, Firefly is just an ordinary girl. In her dreams, however, she's the invincible agent Number 26, working under the secret organization CODE to eradicate evil!
Her latest mission was supposed to be another routine, but an encounter with a certain grey-haired girl might just flip Firefly's double life on its head...
AKA: A Stellefly AU based on Kamen Rider Zeztz's setting, though knowledge of the source material isn't strictly necessary.
(Stellefly Week 2026 | Day 3: Hero + Bug / Day 7: Conclusion)
Series
- Part 3 of Mach's Stellefly Week 2026
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How to Use Your Emanator-Tier Powers by OverMach
Fandoms: 崩坏：星穹铁道 | Honkai: Star Rail (Video Game)
18 Jun 2026
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Silver Wolf has had it with Stelle and Firefly's antics ruining their gaming nights, and so she decides to take matters into her own hands.
(Stellefly Week 2026 | Day 4: Gaming)
Series
- Part 4 of Mach's Stellefly Week 2026
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On her visit to Pearluxe Tower, a certain statue catches Stelle’s eye… and she’s determined to get it.
(Stellefly Week 2026 | Day 2: Imitation)
Series
- Part 2 of Mach's Stellefly Week 2026
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Suit Acting is Serious Business by OverMach
Fandoms: 崩坏：星穹铁道 | Honkai: Star Rail (Video Game)
15 Jun 2026
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Pearluxe Corp is producing a tokusatsu themed after the Stellaron Hunters, and who better to hire as a consultant than Stelle?
It goes about as well as you'd imagine.
(Stellefly Week 2026 | Day 1: Acting)
Series
- Part 1 of Mach's Stellefly Week 2026
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During one particular gaming night, Stelle struggles to stay awake as the Stellaron Hunters around her get up to their usual hijinks.
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With Columbina around, Sandrone's impromptu maintenance doesn't exactly go to plan.
(Sandbina Week Day 1 - Repairs)
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The Marionette's final moments lamenting Columbina, and Sandrone's "first" time seeing her.
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Firefly has visions of lives that she has never lived.
A sequel to "Worlds without you", my entry for Day 7 of the previous year's Stellefly Week.
(Stellefly Week 2025 | Day 7: Wildcard - Reincarnation)
Series
- Part 5 of Mach's Stellefly Week 2025
- Part 2 of Worlds with(out) you
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Fate/Star bug by OverMach
Fandoms: 崩坏：星穹铁道 | Honkai: Star Rail (Video Game), Fate/stay night & Related Fandoms
22 Jun 2025
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Witnessing something she shouldn't have, Stelle gets dragged back into the world of magecraft that she had long given up on.
Cornered and in the face of death, a molten knight comes to her rescue, declaring:
"From this moment forth, my sword shall be with you, and your fate shall be with me.”
(Stellefly Week 2025 | Day 6: Media Crossover)
Series
- Part 4 of Mach's Stellefly Week 2025
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The Evil(?) Princess Will Fall for Me! by OverMach
Fandoms: 崩坏：星穹铁道 | Honkai: Star Rail (Video Game)
20 Jun 2025
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In a world ruled by magic, the Glamoth Empire stands at the top, continuously gaining power by conquering its neighboring nations. Against its ever-growing strength, a three-way alliance is formed between the kingdoms of Belobog, Penacony, and Amphoreus.
The Expressers, a renowned team of mercenaries, is tasked with infiltrating the heart of the empire as transfer students at the prestigious Glamoth Magic Academy. Their target is none other than the daughter of the Empress, Princess Firefly herself, who is rumored to have ties with the terrorist group known as the Hunters.
In Stelle's mind, the plan could not be any more simple:
“All I have to do to save the world is make the evil princess fall for me, right?”
(Stellefly Week 2025 | Day 3: Fantasy + Scars / Day 5: Royalty + Regrets)
Series
- Part 3 of Mach's Stellefly Week 2025
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Firefly doesn't understand why the rest of the Hunters have been avoiding her. Meanwhile, Stelle is scheming something in the background...
(Stellefly Week 2025 | Day 2: Secrets + Day 4: Anniversary + Celebration)
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- Part 2 of Mach's Stellefly Week 2025
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Stelle encounters a fellow pilot from an enemy faction, and she finds that they might have more than one thing in common.
(Stellefly Week 2025 | Day 1: Mecha)
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- Part 1 of Mach's Stellefly Week 2025
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Without Firefly by her side, Stelle reaches the pinnacle of her journey.
…Yet, there is still something THEY can now do about it.
(Stellefly Week 2024 | Day 7: Endings)
Series
- Part 5 of Mach's Stellefly Week 2024
- Part 1 of Worlds with(out) you
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Burn With a Bang! Stellaron Hunter Sam by OverMach
Fandoms: 崩坏：星穹铁道 | Honkai: Star Rail (Video Game)
22 Nov 2024
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(Chapter 3 now out for Stellefly Week 2024! | Day 6: Magical Girls)
Staying in a city that's under constant attack by an evil army of monsters is no easy task, but for Firefly, it's a blessing in disguise. After all, she gets to live in the same town as her hero and her crush, the magical girl Stellar Trailblazer Hoshi!
When Firefly obtains a device that grants her a power of her own, she knows that her time to shine has finally arrived. However, the device instead transforms her into the fearsome Molten Knight, whose terrifying strength turns the battlefield into a scorched earth... the exact opposite of the beautiful magical girl that she adores!
Still determined to stand closer to her idol, Firefly vows to play her own part in protecting the peace of her city, donning a new identity as Stellaron Hunter Sam.
No evil will stand in her way, for she will set even the seas ablaze!
(A magical girl/transforming hero AU.)
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Intergalactic criminal Stellaron Hunter Sam's toughest mission yet: dinner with her girlfriend's family.
(Stellefly Week 2024 | Day 4: Meet the Family)
Series
- Part 4 of Mach's Stellefly Week 2024
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Firefly, the newest member of the Astral Express, encounters Stellaron Hunter Stelle aboard the Xianzhou Luofu.
(Stellefly Week 2024 | Day 3: Role Swap)
Series
- Part 3 of Mach's Stellefly Week 2024
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Firefly runs into a small problem while cooking for her wife. Luckily, it's nothing a seasoned member of Glamoth's Iron Cavalry couldn't handle.
(Stellefly Week 2024 | Day 2: Domestic)
Series
- Part 2 of Mach's Stellefly Week 2024