How many movies have Kayoko Sugi and Masahiro Yoshimoto collaborated on?

They have worked on 4 movies together! Their first movie together was Maruhi kyôsei-zai: Bed ga nureru (1980) 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).