How many movies have Emi Ishikawa and Mototsugu Watanabe collaborated on?

They have worked on 2 movies together! Their first movie together was Excessive libido Naughty play (1991) while their highest rated movie together was Monzetsu OL: Ijô na Zengi (1991). They have not worked together since Monzetsu OL: Ijô na Zengi (1991).