One of the Hachiyō, he is the Seiryū of Earth. Tenma is Akane's classmate and friend, who is pulled into Kyō with her. At first, he was separated from Akane and Shimon but then finds her accidentally quarreling with Yurihisa. In the middle of the series, he admits to Akane that he likes her and will protect her even if it costs him his life. When he asked Akane if she likes him too, Akane did not answer because of some unknown interruption. Then, Tenma told Akane to forget about what he said and he ran away.