Being born as an Ubuyashiki is not easy, girls should marry before the age of 13 and boys usually inherit the family curse being passed down from generation to generation. The former Ubuyashiki's head killed his self as well as their other siblings. Kagaya and [Name] were left as Kagaya became the Head, [Name] was beside him to be with him not until the story of Kamado Tanjiro began. Kimetsu no Yaiba: Demon Slayer doesn't belong to me. Koyoharu Gotoge should claim the credits for the manga.