Reactionist
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Summary
Ryan thought he was going to die from his father's fist.
Hughie thought he would never get to see his first love again.
Homelander thought he would never find love.
Butcher thought he would never a chance for his redemption.
What happens when so many of the things they watch, slowly change them for better and for worse? If they can stop Homelander from killing people throughout. -
WHDAAA: What Ifs Edition by Gungnir69, Reactionist
Fandoms: Re:ゼロから始める異世界生活 | Re:Zero Starting Life in Another World (Anime)
11 Apr 2026
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The cast of WHDAAA had just finished watching arc 6/s4... They are still dealing with it... and now suddenly a change of course happens for no other reason than because of Subaru's regret... All he did was wonder... What If things were different?
This story is canon to my collection of react fics set in the WHDAAA Universe. Enjoy.
Series
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ReZero: Watching the Underground Play by Gungnir69, Reactionist
Fandoms: Re:ゼロから始める異世界生活 | Re:Zero Starting Life in Another World (Anime)
07 Mar 2026
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A reaction piece commission of the infamous Re:Zero Arc 6, Chapter 13 to 15. This time, with Subaru awake, viewing one of the worst loops alongside the rest of the casts. Awkward moments will ensue amongst the camps.
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Re:Zero Watching Him Die Again and Again by Reactionist
Fandoms: Re:ゼロから始める異世界生活 | Re:Zero Starting Life in Another World (Anime)
02 Mar 2026
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This will be a reaction fic where the characters will be watching Subaru's adventure in their world. Spoilers for the anime and the novels. These characters are Arc 5's characters. Season two will be in here along with Director's Cut season one and some OVAs. Special thanks to Wishful Witch on reddit for the cover art. Enjoy!
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Karsten IF by Reactionist
Fandoms: Re:ゼロから始める異世界生活 | Re:Zero Starting Life in Another World (Anime)
13 Feb 2026
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Summary
One small action causes an entirely new reality to be born. In this story, a small need for a conversation beneath a gigantic tree, causes an entire world to change its narrative.
Watch as the Valkyrie of the Karsten royal house, persevere to become yet another cornerstone of support for Natsuki Subaru
Recent series
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WHDAAA Canon Multiverse React Fic Spinoffs by ArcherFromArnor, AWZ, Gungnir69, Reactionist
Fandom Re:ゼロから始める異世界生活 | Re:Zero Starting Life in Another World (Anime)
11 Apr 2026
- Words:
- 286,830
- Works:
- 4
- Bookmarks:
- 33
Recent bookmarks
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Through the Raging Flames: The Gold Rises by reyraereads (tamarr)
Fandoms: House of the Dragon (TV), A Song of Ice and Fire - George R. R. Martin
06 Apr 2026
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Summary
Aegon had been burnt by his brother, crippled by his cousin, and murdered by allies, all for a crown that he never wanted. He had murdered no children, yet his were taken from him. He had killed no dragons, but Sunfyre was maimed and forced to die in pain due to his loyalty to Aegon. His family had lied, schemed, and manipulated, leading to his ruin. All Aegon knew was that they would all pay.
Time-Travel AU where Aegon wakes in the Year of the Red Spring, forms his faction, fights for the throne, and makes his enemies pay.
- Language:
- English
- Words:
- 330,415
- Chapters:
- 35/45
- Collections:
- 11
- Comments:
- 2,602
- Kudos:
- 4,270
- Bookmarks:
- 1,021
- Hits:
- 210,967
Bookmarked by Reactionist
06 Feb 2026
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The Karsten Prodigy by ArcherFromArnor for Arpidggio
Fandoms: Re:ゼロから始める異世界生活 | Re:Zero Starting Life in Another World (Anime)
04 Feb 2025
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Summary
More than a decade has passed since Natsuki Subaru arrived in this world, forging a life alongside Crusch Karsten and raising a family together. Among their six children, one stands apart—Aria Karsten, a bright yet mischievous girl who, unbeknownst to her, carries a strength that defies reason.
Bookmarked by Reactionist
09 Feb 2025
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Watching Him Write Again And Again by Arpidggio for Reactionist
Fandoms: Re:ゼロから始める異世界生活 | Re:Zero Starting Life in Another World (Anime)
07 Sep 2024
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Summary
Before he'd been summoned, Subaru had been a writer. Thinking about the audience he'd left behind gets to him. Who else to go to but an ex-librarian?
Bookmarked by Reactionist
07 Sep 2024
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Black Amidst Green by DMCMercy
Fandoms: House of the Dragon (TV), A Song of Ice and Fire & Related Fandoms
09 May 2023
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Summary
Lucerys returns from Storm's End, well and alive and the queen makes a choice that could either save or doom her family. Princess Rhaenyra Targaryen returns to King's Landing as Aegon II's Hand, navigating the uncertain peace in the realm with Greens and traitors all around her and grappling with feelings she long thought dormant.
- Language:
- English
- Words:
- 125,765
- Chapters:
- 22/22
- Comments:
- 500
- Kudos:
- 1,859
- Bookmarks:
- 397
- Hits:
- 60,034
Bookmarked by Reactionist
12 Jul 2024
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Mettle Won't Burn by orphan_account for Reactionist
Fandoms: Re:ゼロから始める異世界生活 | Re:Zero Starting Life in Another World (Anime)
12 Feb 2024
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Summary
Decades passed the Royal Selection, without a ruler crowned. The kingdom broke under its neighbours and redrawn over the map.
Now at the brink of its conquest, a final battle wages for the dragon realm's soul. Between a Sun Queen made returned. And a Karsten sired son. A king of old returned! Nemean Karsten - the Lion Herted!
Bookmarked by Reactionist
13 Feb 2024