His background is unknown, but he was in possession of documents indicating that he was sent to Kanai Ward as a detective-in-training at an agency in the city. A lack of self-confidence results in a tendency to frequently complain. However, he possesses a strong sense of justice and tries to help anyone in need. Doesn't remember birthday. Only Yuma can see Shinigami. Dislikes being yelled at. Has crush on Kurumi. Is brutally honest. Thinks he's just pretending to be a detective. Is sentimental. 