Interdimensional Chaos
A collection of my favorite fics with one or more of the following tropes:
- Interdimensional Travel
- Time Travel
- Crossovers
- Fandom Fusions
- Reincarnation/Rebirth
- OC-insert
- Self-insert
Includes all pairings (Gen, M/F, M/M, F/F), all genres, one shots and longfics, all ratings, all fandoms, both WIPs and completed works.
Includes Archive Warnings: Graphic Depictions of Violence, Major Character Death.
Does not include Archive Warnings: Underage, Rape/Non-Con.
(Closed, Moderated)
Recent works
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Tilt My Head Just So by SenMiz
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
25 May 2026
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Summary
Objectively speaking, there are worse people to be reincarnated as. Ultimately unimportant side character, socially acceptable Quirk, winner of the genetic lottery, only mildly deranged.
Honestly, ignoring the fact that he looks increasingly like a fuckboy douche, he's handling this like a champ.
(It's an SI fic. It's an SI fic.)
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Drowning in A Dream by DarkCommet
Fandoms: A Song of Ice and Fire - George R. R. Martin, A Song of Ice and Fire & Related Fandoms, Game of Thrones (TV), Percy Jackson and the Olympians - Rick Riordan, Percy Jackson and the Olympians & Related Fandoms - All Media Types
24 May 2026
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Summary
There's something wrong with Berylla Brax... everyone's heard of the accident. How she'd fallen going to break her fast and hadn't woken for nearly a moon's turn. When she did wake up Lady Berylla came back different. Quiet, observant, intense in a way she hadn't been before.
As she watches the Berylla wipe blood off of her stolen sword Elia supposes she should be thankful for the oddities of her savior.
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Summary
He was smiling. At Tom Riddle. He was going to get murdered before the year ends, he just knows.
Alternate universe/Post-Hogwarts. warnings: mature themes, drinking, swearing. An adult Harry Potter with all his knowledge and experience is transported to his 23yo body in a universe with no war.
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There are no comforts in Konoha. No olives, no orange groves, no ocean.
She cannot devote her life in sincerity to a place that has nothing for her.
If she feels any loyalty to Konoha at all, it is because her family resides within its walls.
—
A Sicilian Nanna awakens as a less than footnote worthy Uchiha Kiyo.
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The Prancing Stag (ASOIAF SI) by Knight_Vigilant_Koren
Fandoms: A Song of Ice and Fire - George R. R. Martin, A Song of Ice and Fire & Related Fandoms, Game of Thrones (TV)
04 Apr 2026
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Summary
A Renly Baratheon SI that tries to be truly realistic. As Lord Paramount of the Stormlands can I keep my head attached? Is going for the throne a good idea? And WTF am I going to do about the White Walkers?
Recent bookmarks
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For the Greater Good by ariadne22
Fandoms: A Song of Ice and Fire - George R. R. Martin, Harry Potter - J. K. Rowling, A Song of Ice and Fire & Related Fandoms, House of the Dragon (TV)
07 Jun 2026
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Summary
When Dumbledore died he definitely did not expect to reincarnate in a new world.
- Language:
- English
- Words:
- 220,364
- Chapters:
- 62/?
- Comments:
- 3,766
- Kudos:
- 4,517
- Bookmarks:
- 1,467
- Hits:
- 211,951
Bookmarked by Irisen
05 May 2026
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Bookmarker's Notes
Super original concept and very well executed! Excellent story. I never thought I’d ever read anything like this and it turned out to be an amazing fic.
Reincarnated Dumbledore is smart and fascinating to follow, magic was toned down enough to fit into Westeros while changing it fundamentally, and the main pairing is toxic and entertaining.
55/?
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Summary
“She had thought she would spend the whole day wondering where she went wrong. Instead, Itachi’s tired eyes reflected her own.”
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.
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The night of the Uchiha Massacre, Uchiha Miho perished under the hand of her brother. She didn’t expect to wake up, much less as an infant - again.(SI!OC who tried and failed… and now had the unwelcome chance to try again.)
- Language:
- English
- Words:
- 29,913
- Chapters:
- 4/?
- Collections:
- 11
- Comments:
- 630
- Kudos:
- 5,396
- Bookmarks:
- 2,054
- Hits:
- 73,996
Bookmarked by Irisen
23 Apr 2026
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Bookmarker's Notes
Great concept, very well written.
A SI is born a third time after dying to Itachi in her first rebirth. The contrast between her current third life and the flashbacks we get of her second are tragic and very interesting.
4/?
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Summary
Basic medicine and sanitation are simple. During the Warring Clans era, they become revolutionary.
Series
- Language:
- English
- Words:
- 105,880
- Chapters:
- 16/16
- Collections:
- 69
- Comments:
- 1,733
- Kudos:
- 10,739
- Bookmarks:
- 5,206
- Hits:
- 222,544
Bookmarked by Irisen
23 Apr 2026
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Bookmarker's Notes
What a ride. One of the best OC insert stories I’ve ever read. Worldbuilding and power to civilians. Includes some tragedy but also beautiful prose and characters.
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Tell me about despair, yours, and I will tell you mine. (--Meanwhile the world goes on.) by llamallamaduck
Fandoms: Batman - All Media Types, Fullmetal Alchemist - All Media Types
23 Apr 2025
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Summary
Roy learned long ago not to put faith in fate, destiny, or any grand cosmic plan; such notions are easily hijacked by charismatic lunatics with rage in their hearts and blood on their hands. He should know. Debts, on the other hand, are concrete. Solid.
This might explain why his first few months in Gotham vanish in a haze of miserable, bacchanalian excess. Things like him need a leash—or a heavy boulder to roll uphill—lest the demons in their hearts escape and devour the world. With no real purpose on the horizon, drinking and drugging his days away seemed like the safest option for everybody. Then Bruce Wayne saved him—and had the nerve to be interesting about it—and Roy has to consider that there might be more for him here than a short drop and a sudden stop.
Series
- Part 22 of Set in Batman-verse
- Language:
- English
- Words:
- 27,847
- Chapters:
- 8/?
- Collections:
- 8
- Comments:
- 426
- Kudos:
- 1,382
- Bookmarks:
- 513
- Hits:
- 17,875
Bookmarked by Irisen
22 Apr 2026
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Bookmarker's Notes
This is a very interesting depiction of Roy when untethered from his duty and his support system (enablers?), and an exploration of how he would react when given a new cause to fight for. It also includes a study of corruption and discrimination in the justice system, which is especially apt in Gotham. Includes dark themes (pretty canon typical).
I’m intrigued to see how the main pairing evolves, since it currently is Gen.
8/?
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we wear the mask that grins and lies, (-it hides our cheeks and shades our eyes,—) by llamallamaduck
Fandoms: Harry Potter - J. K. Rowling, Naruto
27 Oct 2023
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Summary
Itachi Uchiha, officially known as Sirius Black, leaves his brother yet again. It seems kin-slaying has somewhat predictable consequences. Honestly, who thought sending a traumatized Shinobi to Hogwarts was a good idea?
Series
- Part 2 of ring out the old, ring in the new, (-ring out the false, ring in the true)
- Part 2 of Set in Harry Potter-verse
- Language:
- English
- Words:
- 119,666
- Chapters:
- 37/37
- Collections:
- 31
- Comments:
- 2,234
- Kudos:
- 5,438
- Bookmarks:
- 1,428
- Hits:
- 142,598
Bookmarked by Irisen
22 Apr 2026
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Bookmarker's Notes
The relationship between Regulus and Itachi is wonderful. Itachi as Sirius is a tragic character. The ending was unexpected but not unwelcome.