Kagaya Ubuyashiki’s origins and position in Demon Slayer Kagaya Ubuyashiki, usually referred to as ‘Oyakata-sama’ or ‘master’ within the series, is the 97th head of the Ubuyashiki family.

Kagaya Ubuyashiki's shocking sacrifice was an integral part of the final fight with Muzan. For the first time ever in history, it gave the corps members the opportunity to attack first, ...