Swordsmith Village

Ever since Muzan appeared, the Ubuyashiki family had seemed to be cursed. Not a single male heir could live past the age of twenty-five, and Ubuyashiki Kagaya was not far from that age himself. "Upper Rank Three has been killed, and the Upper Ranks have shifted. This is an upheaval unseen in centuries! With the Demon Slayer Corps growing stronger and stronger, Muzan, your end is near!" Since taking over as the head of the Demon Slayer Corps in his youth, this was nearly the happiest day of his life.