Species: Ghoul. Blood type: O. Touka is a female ghoul who was originally from the 20th ward which is according to ghouls; a relatively peaceful ward compared to other wards in Tokyo. She lived with Ayato, her younger brother, and their father, Arata.At an early age, their father influenced them to live their lives by blending in the human society.weet. Known by Ghoul Investigators as “Rabbit” due to her hunting mask, Touka is a 16-year old student and waitress of the cafe shop Anteiku. Task this cute ghoul to keep your keys or paraphernalia intact with this adorable keychain.