How many movies have Mari Yamaguchi and Maria Wakatsuki acted in together?

They have worked on 2 movies together! Their first movie together was Yari-goro joshidai: Nama tsuyo garina chibusa (2018) while their highest rated movie together was Mabushii jōai: Nukanaide (2020). They have not worked together since Mabushii jōai: Nukanaide (2020).