How many movies have Saori Mizuno and Yōichi Shiga collaborated on?

They have worked on 2 movies together! Their first movie together was Chikan densha: Kaikan shanai (1987) while their highest rated movie together was Welcome to the Ogenki Clinic: Feel Good All Over Again (1988). They have not worked together since Welcome to the Ogenki Clinic: Feel Good All Over Again (1988).