Kyoko Kirigiri is a student in Hope's Peak Academy's Class 78th, and a participant of the Killing School Life. Years later, she became a participant of the Final Killing Game with the other Future Foundation Directors. Kyoko comes from a family of famous detectives. Her father, Jin Kirigiri, wasn't interested in being a detective, and he was kicked out of the family by his father Fuhito Kirigiri before Kyoko was even born.