Prologue - The Birth of Black Reaper

Kaneki Ken, a boy who lost his parents because of ghoul. After he becomes young adult, he becomes an investigator and he is the mentor of quinx squad. Only several investigators who dare to approach him due his cold personality and the waitress from his favorite cafe.

Kirishima Touka, the waitress of :Re cafe has warm personality. Many people like her but her true identity is...