serasty
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Recent works
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Summary
No one ever truly knew anything complete about Dazai.
Everyone picked up fragments here and there—small pieces of information, scattered hints—but even when those fragments were put together, they barely formed a quarter of the full picture.
And when an ability began showing Dazai’s memories to both the Armed Detective Agency and the Port Mafia, things quickly spiraled out of control.
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at the end of the spider web by serasty
Fandoms: Ultimate Spider-Man (Cartoon 2012), Spider-Man (Tom Holland Movies), The Avengers (Marvel Movies), Deadpool (Marvel Comics)
25 Dec 2025
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Summary
Peter Parker, who lost his family at thirteen, is “adopted” by Tony Stark—but the Stark Tower never truly becomes his home. Harley is everyone’s golden child; Peter is the quietly forgotten kid. No one notices his intelligence, his trauma, or how much he has changed.
After testing the powers he gained from the spider bite on his own, Peter goes unheard for years. Finally, at seventeen, he hacks the SHIELD system and calls Nick Fury.
Perhaps this time, someone will actually listen.
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little spider returned home by serasty
Fandoms: Spider-Man (Tom Holland Movies), The Avengers (Marvel Movies), Iron Man (Movies), Marvel Cinematic Universe
09 Dec 2025
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Peter Benjamin Stark had been kidnapped when he was just a year old—
and he was never found again.Despite all of Tony’s desperate searches, every resource he pulled, every corner of the world he turned upside down, he never reached his son again. To this day, he doesn’t know if the boy is alive… or dead.
And now, fourteen years after the tragedy, Tony has taken on an intern.
A boy named Peter.Well… it looks like it won’t take long before the entire Avengers team realizes that this kid is anything but ordinary.
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a million watt smile by serasty
Fandoms: 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime), 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Manga)
24 Oct 2025
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Summary
How beautiful can someone’s smile be?
What happens when ocean-like eyes meet a beautiful smile?
The Pillars don’t know — Tomioka never shows his face, never smiles.But damn… why doesn’t he smile more often when his smile looks that beautiful?
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silent water wave by serasty
Fandoms: 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime), 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Manga)
14 Oct 2025
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Centuries after the final battle, the gods rewarded them and allowed them to live another life. Somehow, everyone found each other again, becoming even closer than before. But fate had once again been unkind to Tomioka Giyuu. Could the group who were once Hashira stand by the side of the boy they had once cast aside this time?
!! Mute Giyuu !!
Recent bookmarks
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Summary
The ADA finally gets a break, though it only lasts less than a day, because when Atsushi brings back an accidentally stolen diary, the ADA realizes that maybe they should still be watching what they're doing carefully...
OR...
Atsushi finds the diary of an incredibly unstable man who is obsessed with someone at the agency.
Bookmarked by serasty
12 Jul 2026
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Summary
it was a normal day this all started.
when Fyodor said he found the book, no one not even Ranpo could get why Dazai was acting normally. not until some realizations came up, and they all center around one Dazai Osamu.
Bookmarked by serasty
12 Jul 2026
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Summary
This fanfiction is about Dazai's past.
Some members of the ADA and PM (+Ango and Natsume) find themselves in this infinite, empty, white room, forced to watch Dazai's past and backstory because of some stubborn Goddesses.
But what if seeing the brunette's backstory helps them to understand him better? More importantly: what if this experience will allow Dazai to finally find himself and perhaps with it find his will to live?Bookmarked by serasty
12 Jul 2026
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Summary
Dazai Osamu. He is a notorious man, in a way most people will not guess. Yes, he is a man who works at McDonald's while pursuing a philosophy degree, but he is also a man with the wildest habits—the same habits that have made him infamous in the entirety of Yokohama.
What does he do exactly? He smiles disarmingly, charms his customers, flirts with women and men, but only picks up women, and yes, the women immediately say no after just one date because he says—“Would you like to commit double suicide with me?~”
Or Dazai is a typical college kid with untypical hobbies and personality and no ability, whose life takes a u-turn when he meets the ADA and Fukuzawa Yukichi while working at McDonald's.
Perhaps...he'll find a reason to live in a world where he is an outsider.
Playlist (may be updated with each chapter):
Meet the Frownies - Mr Twin Sister
A Double Suicide - Sheena Ringo
Dancing Nihilist - pathetic240px
Lilium Music Box - Lilium from the anime 'Elfen Lied'
My Ordinary Life - The Living Tombstone
Take A Slice - Glass Animals
Baby Hotline - Jack Stauber's MicropopBookmarked by serasty
11 Jul 2026
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Summary
He fled the Mafia, thinking exile would bring peace. Instead, it brought morning sickness, uncertainty, and the echo of a heartbeat that wasn’t his. Dazai never imagined he'd carry life. Or that the most dangerous part of it would be the one he left behind
Series
- Part 1 of Scarlet Continuum
Bookmarked by serasty
11 Jul 2026