Odagiri Tsutomu is the narrator and protagonist of B.A.D. He harbors an oni in his stomach, which allows him to see into other's emotions and memories. After being saved by Mayuzumi Azaka, he works for her in the Mayuzumi's psychic detective agency. Despite his distaste in Mayuzumi's attitude, he is always seen by her side. Odagiri does not hesitate to lend a helping hand to others, which caused him much joy and suffering throughout the series.