How many movies have Masahiro Yoshimoto and Rumi Kagawa collaborated on?

They have worked on 4 movies together! Their first movie together was Semi-dokyumento: Tokkun Meiki Dukuri (1981) while their highest rated movie together was Porno document: Toruko tokkyû bin (1982). They have not worked together since Porno document: Toruko tokkyû bin (1982).