He is a 21 year old member of the head family of the Oni that run Takeshi at Yoshino. Of the core three Onis, Ibuki is the youngest; he is also the youngest Oni in Kanto. Being born into the head family meant that his life would always revolve around being an Oni and battling Makamou, a fact that Ibuki never had a problem with. He wished to protect others and knew that not wanting to carry out his legacy would both disgrace his family name and be selfish.