How many movies have Kaoru Oda and Natsuko Yamamoto acted in together?

They have worked on 4 movies together! Their first movie together was Sailor Uniform: Lily Lovers (1983) while their highest rated movie together was Sailor Uniform: Lily Lovers 2 (1983). They have not worked together since Office Ladies: Lesbians in Uniforms 3 (1984). They are most known for their romance films together.