In 'Demon Slayer: Kimetsu no Yaiba', he is Kagaya of House Ubuyashiki. He comes from a long line of Corps leaders and so must himself bear the weight of this responsibility. Indeed, his calm, gentle manner conceals a will as unyielding as steel and an unshakable determination to pursue his cause to the very end. But thanks to their ancestor's past against Muzan Kibutsuji, the originator of all demons, he and his family are cursed. In spite of this heavy physical toll, Ubuyashiki never wavers from his commitment to rid the world of demons. Moreover, he is a kind leader, addressing honor and empathy upon all his demon slayers no matter how low rank they rank. Always out there in the front, prepared to take any risks on behalf of his people he leads by example as reflected in his Corps members' unwavering loyalty. As a scheming genius, he drew up Muzan's assaults one by one, planning every eventuality. In the final analysis, Ubuyashiki is by nature a gentle and soft-spoken person who is yeta killer in his own right: thanks to wisdom gained from old age orfirmed by bravery against all odds! He is truly the epitome of Demon Fire.Corps!