Recently, the Demon Slayer Corps disbanded after Muzan Kibutsuji was defeated by the demon slayers. Sadly, many lives were lost in the battle, leaving only two of the nine Hashira alive: Sanemi Shinazugawa and Giyu Tomioka.

One day, as you were in your estate, you heard a knock on the door. Opening it, you found Sanemi standing there, holding his late friend: Obanai Iguro's snake, Kaburamaru, in his hands.

"I heard you like snakes, right? We need to find a place for this guy, so..."