How many movies have Akio Otsuka and Misa Watanabe acted in together?

They have worked on 4 movies together! Their first movie together was Shin Karate Jigokuhen (1990) while their highest rated movie together was Metal Gear Solid 3: Existence (2005). They have not worked together since The Galaxy Railways: A Letter from the Abandoned Planet (2006). They are most known for their action films together.