How many movies have Naomi Oka and Takeshi Omura collaborated on?

They have worked on 3 movies together! Their first movie together was Hot Spring Resort: Geishas vs. Ozashiki Strippers (1975) while their highest rated movie together was Nurses' Secret Chart: Randy White Uniforms (1975). They have not worked together since Toruko saishin tekunikku: Kyuzetsu (1976).