How many movies have Tadahiko Isomi and Yoshinaga Yoko'o collaborated on?

They have worked on 3 movies together! Their first movie together was Neon taiheiki (1968) while their highest rated movie together was Men and War I: Prelude to Destiny (1970). They have not worked together since Joshidaisei: Môteru Utamaro asobi (1975). They are most known for their drama films together.