How many movies have Emi Ishikawa and Ryuji Yamamoto acted in together?

They have worked on 5 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 Burning in the Twilight: A Hattenba Myth (1994).