How many movies have Chisato Ōgawara and Ryôichi Inaba collaborated on?

They have worked on 4 movies together! Their first movie together was Big Computer (1997) while their highest rated movie together was Stacy: Attack of the Schoolgirl Zombies (2001). They have not worked together since Sexy Cats: Kaitou Cosple Sanshimai (2004).