kisul1
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Summary
It was all over anyway..
So when Mephisto told Rin that the only way for him to live is to transform into a blue-flamed cat-demon and be Yukio’s familiar, he accepted his fateOr
When Rin destroyed the gehenna gate with his newly awakened flames, Mephisto gave him a deal: if he transformed into a blue-flamed cat-demon and became Yukio’s familiar, he could live. Only Yukio and Mephisto would know the secret about him.
Rin’s appearance as a cat-demon:
Light blue sleek fur, white paw pads, light blue eyes, two small hors on forehead that swirl with blue flames, a flame-looking patch on forehead, big pointed ears, long twisted tail (kinda same as the demonic tail he has in the anime and manga) and large bat-like wings
Check my ig for my illustration of his appearance: https://www.instagram.com/p/DXCRGC9jI7H/?igsh=eXA3bWozMmM4cnE5
(Ig: k1sulii) -
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Summary
Rin Okumura grew up, not knowing who he is or… what he is.
But everyone else knew. All the time they knew. They knew he is a demon.. a very powerful and possibly dangerious demon.Shiro fujimoto, a human who raised Rin and his twin brother Yukio, decided that if he needs to, he will make Rin his familiar demon to protect him if/when his powers awaken. This was because there is a law that says: 𝐲𝐨𝐮 𝐜𝐚𝐧 𝐧𝐨𝐭 𝐤𝐢𝐥𝐥 𝐚𝐧𝐲𝐨𝐧𝐞𝐬 𝐟𝐚𝐦𝐢𝐥𝐢𝐚𝐫 𝐝𝐞𝐦𝐨𝐧.
No one can change or come across that law, not even grigori.Yukio, who doesn’t have any demonic powers, knows about Fujimotos plans for Rin.
However, when the day his powers awaken came to be, father fujimoto died while being possessed by Satan, Rin and Yukio’s biological father. Rin managed to escape Satan and the gehenna gate that was about to swallow him by breaking the very sword that contained his demon heart. The power of it exploded the gehenna gate and transformed him into his true demon-form. Blue eyes, pale blue -almost white hair, white tail, fangs, claws, small horns, blue flames, all.
And thats when he knew, everything had changed, and nothing will ever go back to normal anymore.
Recent bookmarks
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Kit 2.0 by Avvi88
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
23 May 2026
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Summary
Aizawa Shouta and Midoriya Izuku get hit with a transformation quirk, turning them into cats.
Series
- Part 2 of Kit Dadzawa, re-write and extras
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Once Burned, Twice Shy by Starlight Sakura (PastelGlitterPen)
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia
02 Sep 2022
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Summary
“Do you have to leave?” Izuku asked quietly.
“Yeah. I can’t be around you,” Hisashi sighed. “I’m bad luck or something.”
“Oh,” Izuku said quietly, looking at the ground sadly.
“But it’s fine. You have your soulmates,” Hisashi reminded her, pointing at her arm. Eight bands of black and white flowers circled her arm, from wrist to elbow. It was a lot of bonds but that just meant that she’d have more people to love her.
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Midoriya Izuku doesn't want to meet any more of his soulmates. Not after the first one he met in middle school broke their bond, burning away their flowers. There was no way his soulmates would accept him. Quirkless, abandoned, and broken.
When he winds up being fostered by one and in the same class as a few others, will he be able to keep them away and shut them out of his life? Does he still want to?
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[podfic] Tiny Mittens by GlooomyGraveyard for koogi123 (drlessy)
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
21 Jan 2026
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Summary
Izuku’s paws stretch out while he’s carried to the kitchen and he lets out a pleased mew, feeling as if he was flying being held high up in the air.
It was adorable.
or// Just Self-indulgent cat Izuku & Aizawa fluff.
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Hear me roar by o0_Lucy_0o
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia
26 Oct 2021
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Summary
Izuku has a quirk that let's him shapeshift to a lion. He grows up in a wild pride of lions with no human interaction.
When people find out, he gets taken away from the only life he has ever known and is forced to rejoin society with the help of dadzawa and dadmic.
Or
Izuku's journey learning how to human.
(Complete with ongoing sequel)
Series
- Part 1 of Hear me roar
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it's a beautiful thing that i keep close to me (and i won't forget, but nothing is mine to keep) by MidwesternLesblan, zashizawa
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
19 Aug 2024
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Summary
“Hello?” Once again, no words were produced, instead a panicked wail. Frantically scrambling up, Hitoshi immediately realized his predicament as he wobbled on four legs. Four. How could he not recognize his favorite animal?
Holy shit! Holy fucking shit, he was a cat! Catching sight of his actual, real tail, Hitoshi spun rapidly, tripping over his useless legs and finding himself sprawled back on the ground with a pained cry. He was an actual cat.
Hitoshi was a cat.
(Or, Hitoshi gets turned into a cat. He does not have a fun time.)