How many movies have Michio Morioka and Toshinori Omi collaborated on?

They have worked on 4 movies together! Their first movie together was I Are You, You Am Me (1982) while their highest rated movie together was His Motorbike, Her Island (1986). They have not worked together since Bound for the Fields, the Mountains, and the Seacoast (1986). They are most known for their comedy films together.