日本推理作家協会
Three of his novels have been turned into feature films; "Mōryō no Hako", which won the 1996 Mystery Writers of Japan Award, was also made into an anime television series, as was Kosetsu Hyaku Monogatari, and his book "Loups=Garous" was adapted into an anime feature film. Vertical have published his debut novel as "The Summer of the Ubume".