Mr. Tanaka works at the Awayuki Estate residents.
Mr. Tanaka and Natsue Awayuki used to go to school together, with Tanaka harboring a crush on Natsue while she pursued other interests. He once offered Natsue a ride, which lead to his employment as the Awayuki’s chauffeur.
During Himeno's final confrontation with Takako and Great Tree of Fenrir, Tanaka was dragged away from the city in a crowd of fleeing people. After the battle he eventually found his way back to the estate.