Kouji Iwahata
An agent of the ministry who dislikes Izuna. He is very tall and muscular, and a powerful spirit-user. Some of the more comical moments in the manga suggest that he may be homosexual. He is an ex-soldier, and was hired by a mercenary corporation until the agency recuited him for his ability to sense spirits.
In Tokyo ESP x Ga-Rei: Shadow Walker was revealed that Rindou Urushiba is his cousin.