How many movies have Eri Kamei and Koharu Kusumi acted in together?

They have worked on 88 movies together! Their first movie together was Morning Musume. 2005 Spring ~Dai 6 Kan Hit Mankai!~ (2005) while their highest rated movie together was Hello! Project 2008 Winter ~Kettei! Hello☆Pro Award '08~ (2008). They have not worked together since Petit Best 20 2020 (2020).