How many movies have Makoto Naohira and Seiji Izumo collaborated on?

They have worked on 2 movies together! Their first movie together was Asako Koizumi yokubō (1989) while their highest rated movie together was Sayaka VS Chiyo-kun: Abnormal Lesbian (1989). They have not worked together since Sayaka VS Chiyo-kun: Abnormal Lesbian (1989).