Haise is a character from the manga and anime series Tokyo Ghoul, created by Sui Ishida. He is introduced as a half-human, half-ghoul hybrid, known as a half-ghoul. Haise is a central figure in the sequel series, Tokyo Ghoul:re, where he takes on the role of a special investigator working for the Commission of Counter Ghoul. In the story, Haise struggles with his identity and memories, as he is a reincarnation of the character Kaneki Ken. His journey explores themes of acceptance, conflict, and the search for self amidst the chaos of a world divided between humans and ghouls.