14 Bookmarked Items in Crossover Reactions
List of Bookmarks
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MHA Watches Detentionaire by Araitsume
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga), Detentionaire (Cartoon)
17 Jul 2026
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Izuku and an assorted collection of people he knows and/or admires have found themselves whisked to an artificial island resort called Coral Grove, where they’re subjected to watching the exploits of a very unfortunate teen.
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Kivotos reaction Kamijou Touma by Nak123p
Fandoms: Blue Archive (Video Game), Toaru Majutsu no Index | A Certain Magical Index
18 Jun 2026
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This work is related to the intersection of Toaru and Touhou. This means I'll temporarily skip the stage of completing all the work related to the Touhou world. And Touma can travel back and forth between the Touhou worlds normally thanks to special technology.
And the setting of Blue Archive and Toaru is the sequel to my previous works, "Life in Gensokyo" and "Touhou Reaction Touma".
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Watching the Cipher-Verse by Mandalore_the_Atreides
Fandoms: Phineas and Ferb, Phineas and Ferb the Movie: Across the 2nd Dimension (2011), Gravity Falls, Amphibia (Cartoon), The Owl House (Cartoon)
30 Jun 2026
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The Tri-State Area. Gravity Falls. Amphibia. The Demon Realm. The same Earth. Characters from all these places are brought together by an unknown host to watch their past adventures. New friendships are formed. Some ships start sailing. But what do they mean when they say that the fate of everything depends on them coming together?
Series
- Part 1 of The Cipher-Verse
- Part 1 of Cartoon Crossovers
- Language:
- English
- Words:
- 316,089
- Chapters:
- 25/?
- Collections:
- 3
- Comments:
- 3,584
- Kudos:
- 1,662
- Bookmarks:
- 520
- Hits:
- 251,607
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Re: Watching A Certain Unlucky Hero by TheUncertainMan22
Fandoms: Re:ゼロから始める異世界生活 | Re:Zero Starting Life in Another World (Anime), Toaru Majutsu no Index | A Certain Magical Index
02 Aug 2026
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The nightmare of the Pleiades Watchtower is finally over. The screen has faded to black, the traumatic secrets of "Return by Death" are out in the open, and Natsuki Subaru has finally woken up to the tearful embraces of the people he loves. The re:zero cast is emotionally drained, but their respect for their beloved, unlucky hero has never been higher. Before they can return to Priestella, however, the mysterious Warden offers them a choice: go home, watch their own terrifying future, or witness the journey of another hero from a different universe entirely. Curious, exhausted by their own world's suffering, and eager to see an "ordinary" Earth boy who supposedly shares Subaru's terrible luck and reckless heroism, the cast agrees. Welcome to Academy City—a metropolis of psychic espers, secret magicians, and a seventeen-year-old Level 0 who is about to shatter the illusions of gods and monsters alike.
A WHDAA (Watching Him Die Again and Again) spin-off / crossover where the Post-Arc 6 Re:Zero cast reacts to A Certain Magical Index.
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Class 1-A watches Angels of Death by NetNymph
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga), 殺戮の天使 | Satsuriku no Tenshi | Angels of Death (Anime)
07 Apr 2026
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Students and a handful of teachers this time watch a video about two heroes of a temporary video: a 13-year-old girl and a man of about 20, and their strange upcoming adventures that they experience in a closed building, and their only way out is... ESCAPE
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Animes Watch the Marvel Cinematic Universe - Introduction by Nighlocktheawesome00
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga), 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime & Manga), Fairy Tail, Pocket Monsters | Pokemon - All Media Types, RWBY, KPop Demon Hunters (2025), Marvel Cinematic Universe, marvel movies
07 Jul 2026
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Characters from MHA, Demon Slayer, Fairy Tail, Pokémon, RWBY, and K-Pop Demon Hunters are brought into the domain of Uatu the Watcher to watch the adventures of the heroes of the Marvel Cinematic Universe.
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MHA Reacts: New Generations by Eithernetta
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga), Persona 5, Persona 5: The Phantom X (Video Game)
08 Feb 2026
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In this AU, the Phantom Thieves are well-known vigilantes and have NEVER been caught. Little do they know, a little boy has always seen them as heroes... and later in the future, that little boy would get the chance to be like his heroes...
Now, the future is at stake, and it will take a lot to prevent the world falling to ruin again.
Or, Class 1-A and some of the Pro Heroes and our favorite Phantom Thieves react to the next generation of Phantom Thieves from Persona 5 X
Warning: Personalities may be inaccurate.
Series
- Part 1 of Mha x Persona 5 x Persona 5X Au
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A Forced Employment?? I didn't know! by PillySmith2521 for Amaliala
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga), 백작가의 망나니가 되었다 - 유려한 | Lout of Count's Family | Trash of the Count's Family - Yulyeohan
13 Jun 2026
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Summary
Have you seen the MHA x TCF fanfic titled: 'a forced employment' by 'Amaliala' ?
It's a nice fic! Read it then come back here.
Anyways!
This is a fic where the people of that fic react to some novel parts! (TCF novel)I might post fanarts too, also! :
If you guys have ideas for chapters to make them react to, please tell me! Because I can add them now, but later maybe I won't be able to!!!Enjoy! 🥰🥰🥰❤️
- Language:
- English
- Words:
- 124,020
- Chapters:
- 21/?
- Comments:
- 797
- Kudos:
- 1,360
- Bookmarks:
- 265
- Hits:
- 38,382
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Bookmark Collections:
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Class 1-A React To Black Butler!! by xdarciex62174
Fandoms: Kuroshitsuji | Black Butler, 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
10 Jan 2026
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To put it in short, Class 1-A get kidnapped alongside the Black Butler cast and are forced, against their will, to react to Black Butler!
- Btw this is a work in progress and only reason I've posted this is because of the draft deadline, so it might have slow updates, some mistakes and unfinished parts. Sorry!
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The Basics of Heroics by Nighlocktheawesome00
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga), Team Fortress 2, Incredibles (Pixar Movies), Rango (2011), Transformers One (2024), Finding Nemo (Movies)
31 Mar 2026
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A team of multiversal protectors see fit to teach the MHA cast what they have forgotten about heroics and villainy.
- Language:
- English
- Words:
- 242,117
- Chapters:
- 55/?
- Comments:
- 1,763
- Kudos:
- 1,410
- Bookmarks:
- 523
- Hits:
- 235,141
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Re:Zero - Theater of Hero's by TNTJ_357
Fandoms: Re:ゼロから始める異世界生活 | Re:Zero Starting Life in Another World (Anime), Gravity Falls, Amphibia (Cartoon), The Owl House (Cartoon)
12 Jul 2026
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Summary
While waiting for the episodes of arc 5, the Warden gives the cast a chance to see some other hero’s and their story’s.
Gravity Falls (3 - ???)
Amphibia (??? - ???)
Owl house (??? - ???)
???Chapter 3 Update: 12 / July / 2026
Series
- Part 1 of Re:Zero Theater of Worlds
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Bookmark Collections:
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The Great Reaction Hall by Sugurupi
Fandoms: Multi-Fandom, RWBY, Super Mario Bros. (Video Games), The Legend of Zelda & Related Fandoms, Dragon Ball, One Piece (Anime & Manga), Sonic the Hedgehog (Video Games), ワンパンマン | One-Punch Man, SCP Foundation, 原神 | Genshin Impact (Video Game)
13 Oct 2025
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Summary
A lot of people have suddenly found doors randomly in places where they shouldn't be, and upon entering, they find themselves in the Great Reaction Hall, where they'll see so much stuff.
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Class 1-A Watches Ben 10 by CelestialEmpressSandra
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga), Ben 10 Series
09 Apr 2026
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Class 1-A and a handful of teachers are whisked away to learn about the flaws of their hero society and beliefs in heroes in general. And so, two multiversal creatures show them the flaws of their hero society by learning proper hero lessons from the most unlikely place... A ten-year-old boy with a fancy watch on his wrist.
- Language:
- English
- Words:
- 222,627
- Chapters:
- 17/?
- Comments:
- 4,672
- Kudos:
- 1,140
- Bookmarks:
- 345
- Hits:
- 171,446
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Fairy Tail Reacts to Ben 10 by Anonymous_WriterOfWriters
Fandoms: Fairy Tail, Ben 10 Series
17 Mar 2026
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Summary
After being transported to Earthland, eighteen-year-old Ben Tennyson has settled in and adjusted to life in the Fairy Tail guild. That is, until a mysterious job flier traps the entire guild inside a powerful magical barrier. The only way out? Everyone must watch his life unfold in episodic detail, from the moment he first put on the Omnitrix to his most unforgettable battles. With time outside frozen, plenty of food on hand, and no way to skip the embarrassing parts, Ben is about to relive every triumph, failure, and awkward moment—while all of his Fairy Tail friends watch.
- Language:
- English
- Words:
- 286,413
- Chapters:
- 17/?
- Comments:
- 456
- Kudos:
- 747
- Bookmarks:
- 226
- Hits:
- 69,703
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Bookmark Notes:
Reaction Crossover