Two Weeks in the Infinity Castle

Basically my AU of Demon Slayer (This will include the Hashira and Demon Slayer as well

Karl / Gary (Kokushibo / Giyuu) friendship and my AU on how they met

Hashira & The Leader
Sanemi, Giyuu, Mitsuri, Obanai, Tengen, Rengoku (Rengoku will be alive for this), Muichiro, Shinobu, Gyomei, and Kagaya Ubuyashiki

Demon Slayers
Genya, Tanjiro, Inosuke, Zenitsu, Kanao, and Nezuko

Mitsuri and Obanai has a crush on each other

Upper Moons & The Leader (Order of Upper 6 - 1)
Gyutaro and Daki, Gyokko, Hantengu (And his clones), Akaza, Douma, Kokushibo, and Muzan

Those are all the characters that will be in this story, now have fun reading!