Infinitycastle Stories

So Muzan left to buy milk and now Kokushibo is in charge. Now we can see daily file of uppermoons. And the lowers will be added to this book soon sense they are underrat...

This story is about Giyuu being a father figure to the kamaboko squad as well as aoi and senjuro. Giyuu doesn't remember what happened after sabito died. Father Muzan ...

All this is happening in Infinity castle. Douma as always annoys Akaza. Akaza hates that and wants to teach Douma some manerrs. (Idk what else to writh.) (Warning: Migh...

⌬ Reborn in a world that he didn't expect would be a reality in an alternate universe. Made:06/17/24

Following the events of the official manga. Tanjiro transforms into the demon king and as follows, Kanao was suppose to inject him with the cure but what happens if she...

Muzan Kibutsuji is known for being heartless and anger,but he can't help but feel delighted whenever he sees his uppermoon 3,what is this feeling?... First book on Muza...

In the early morning hours of the third day of Taishō 5, Mushibashira Kochō Shinobu calls Mizubashira Tomioka Giyū to the Butterfly Mansion to discuss something with him...

Demons win the Infinity Castle War, but Muzan remains severely weakened. Senjuro and his friends set out to finally defeat Muzan, and avenge their fallen compatriots. He...

You lost your memories. You found a companion in the mountains. I want SMUT 😃

when Muzan finally got a lil kid-demon which made muzan a better person •<• (a lie ofc) and how the twelve kizuki are showing their true colors:3

Just some little one shots and head cannons

I DO NOT OWN DEMON SLAYER!!!! What happens when tanjiro is neglected and forgotten? Will he suck it up? Or will contiune as a demon?? my grammar isnt the best sorr...

❍⌇─➭ welcome! ﹀﹀ ︵↷ Continue? ➔ YES ・ NO ╰┈➤ ❝ you may continue ❞ ❝𝐈 𝐬𝐰𝐞𝐚𝐫 𝐈 𝐰𝐨𝐮𝐥𝐝 𝐭𝐮𝐫𝐧 𝐧𝐞𝐳𝐮𝐤𝐨 𝐛𝐚𝐜𝐤 𝐢𝐧𝐭𝐨 𝐚 𝐡𝐮𝐦𝐚𝐧! ❞ ┊┊❁ཻུ۪۪♡ ͎. ｡˚...

Kumori Gushvin(Shadow Hashira) and her friend, Amamia Manabu(Kinoe)follow along side Tanjiro, Inosuke, Zenitsu, and the Mist Hashira, Muchiro,to go back to their hometow...

This story is about another plot of the Infinity Castle arch. What if there had been a better ending, where most of the Hashir remained alive? What if there was another...

At the Infinity castle Muzan calls the Lower Ranked Demons for a meeting. Muzan kills all of the Lower Ranked Demons except for One, Enmu was the last one. Muzan had a c...