500 years before the events of Demon Slayer, Muzan Kibutsuji escapes a gruesome death at the hands of Yoriichi Tsugikuni, the first Sun Breather and the inventor of all breathing styles.

Muzan Kibutsuji’s reign of terror was absolute, a web of fear stretching across the Demon Slayer universe. His influence was so suffocating that even the strongest ...

The Ubuyashiki family curse stems from their bloodline connection to the first demon, Muzan Kibutsuji. Members suffer from a deadly disease, causing males to have short lives with skin resembling ...

As the Demon Slayer Corps members and Hashira engaged in a group strength training program, the Hashira Training, in preparation for the forthcoming battle against the demons, Muzan Kibutsuji ...