Affiliation Tokise High School (Formerly) Occupation Koto maker Relatives - Isaki Kudo (Daughter) - Chika Kudou (Grandson) Was a koto maker, the father of Isaki Kudo and the grandfather of Chika Kudo who died a year before the events of the story. Trivia - The name Gen means "source" (源). - Gen's surname Kudo means "long time" (久) (ku) and "far" (遠) (do). (Source: Kono Oto Tomare! Wiki)