How many movies have Koichi Yamadera and Yoshiko Sakakibara acted in together?

They have worked on 10 movies together! Their first movie together was Mami the Psychic: Dancing Dolls in a Starry Sky (1988) while their highest rated movie together was Go! Anpanman: Baikinman's Counterattack (1990). They have not worked together since Ghost in the Shell 2.0 (2008). They are most known for their animation films together.