How many movies have Mari Yamaguchi and Yukiharu Inoue acted in together?

They have worked on 2 movies together! Their first movie together was Female Prisoner Ayaka: Bitch-Training Torment (2008) while their highest rated movie together was At the Mercy of the Darkness: Ayano's Bizarre Delusions (2009). They have not worked together since At the Mercy of the Darkness: Ayano's Bizarre Delusions (2009).