Old Blood Jirou is still trying to get Katarou, but he is weak. Will he be able to save Katarou in time and destroy the kowloon child? Details Casts Galleries Posters Season Lists Title Old Blood Genres Animation Comedy Mystery Drama Release Date 2006-09-29 Episode Runtime 00 Hours 25 Minutes Season Number 1 Episode Number 4 Production Companies Studio Live, Group TAC Takahiro Sakurai... Mochizuki Jirou... Omi Minami... Mochizuki Kotarou... Miyuki Sawashiro... Cassandra Jill Warlock... Ryoko Nagata... Katsuragi Mimiko... Original Size (3000x1688) Original Size (1000x1500) Season 1 12 Episode(s) 2006-09-08