Experiment AU Genya got sold by his father when he was 6 years old as an experiment to terrible people. Muichiro got taken away from his family just before his 14th birthday because he was considered too smart than average Genya deformed from some experiments and now had horns and a tail, making him look like a devil. While Muichiro developed the ability to read others mind Genya got tested physically, Muichiro got tested mentally, will those two together try to escape? And if so, will they make it? (Out of character) (This story has a lot of triggers, so if you ever feel uncomfortable reading it you're free to stop)

Heheeeee. Uhm yeh. I love this ship and feel like its underrated sooo~

obanai and giyuu are secretly dating when the Master creates a "bonding program" for the Hashira. what could go wrong?

"Tomioka, really-" Iguro kept objecting, until he realized what it really meant. Tomioka wasn't curious about what was under the bandages or about the foul blood. Or if he was, he wasn't going to get into Iguro's face about it or treating him differently. He was going to respect Iguro and let him eat in peace. Was that what normal people were supposed to do? Tomioka just seemed so 𝘯𝘰𝘳𝘮𝘢𝘭, acting like any everyday person would, respecting Iguro, not trying to force-feed him but genuinely looking out for his health and hunger. ---- Story concept: Obanai meets Tomioka instead of Mitsuri in the Ubuyashiki estate, and his total lack of reaction to Obanai has the same catnip effect, leading to Obanai fixating on Tomioka. ---- basically i take that and make an entire canon rewrite while having sanegiyuu and obamitsu running in the background, along with some good old giyuu-mitsuri friendship added to the mix. theyre so silly i love them. basically me speedrunning over 30k in a fic with the schedule of two weeks with a whole bunch of tiny lil puns LOLLLL (this is reposted from my place on ao3, going by the same name!)

Peace and tranquility. Most all humans wish for a life filled to the brim with it. Giyuu was no exception to that. He, much like any other people, had only ever wanted to live a comfortable life. One without hardship, and one without illness. Most people never thought to wish on the second. Giyuu, however, has suffered dearly due to both physical illness, and mental. He often times found himself wandering around at night, not heading anywhere specific. His mind is awfully foggy at these times, and so he will often feel disoriented in a way; he wasn't thinking about where he was, and nor did he care.. The cover art isn't mine! Disclaimer: none of these characters belong to me, they belong to the creator of kny itself. TW: This story contains strong language, self harm, mentions of self harm, death, gore, mentions of suicide, and suicide itself. Why does everyone keep adding my book to sanegiyuu and/or sabigiyuu reading lists..? 😭 Disclaimer, this is an old book. There is a version of it that is going to be the rewrite, and many scenes have been added and removed. If you are looking for genuinely legible writing, I would transfer to the rewrite.

this is a saneobagiyuu story, MY AU may contain smut later on, so read at your own risk this takes place in the future, modern era (all hashira were reborn after they all died) takes place in tokyo (but i've never been there so please don't get mad if anything is wrong 😅) rankings: #1 saneobagiyuu as of 1/23/2026 #1 giyuu as of 2/10/2026

Obanai x Giyuu 👀 That "NO. GOD. FUCK." realization trope fits them perfectly - both of them are so awkward and repressed, the meltdown would be hilarious and painful at the same time.

reincarnated saneobagiyuu (not related to my other story) singer giyuu au MY AU more fluff than smut? probably

🔞⚠️Smut and Sanegiyuu!! About: This is a fanfic about Shinazugawa Sanemi and Tomioka Giyuu. So it's a Sanegiyuu story and maybe with some smut. Sanemi thinks Giyuu is ignorant and all that stuff. He is afraid to admit that he got feelings for the water hashira. Sanemi things he would get hard rejected. But the truth is Giyuu feels the same. So Sanemi is rude to the other man to protect his heart. Sadly Giyuu is to incompetent to see that Sanemi isn't hating him so he never said a word. They returned from a mission suddenly Sanemi askes Giyuu: "Do you have a crush?" How will Giyuu answer? Other ships: Mitsuri x Obanai Genya x Muichiro Tengen x Rengoku

KIMETSU NO YAIBA FANFICTION Tomioka Giyuu angst (Deaf Giyuu AU) This story contains: Bullying, depression, self-harming and mentions of su/cide RENGIYUU