How many movies have Seiji Morita and Shigeharu Shiba collaborated on?

They have worked on 6 movies together! Their first movie together was Urusei Yatsura: Ryoko's September Tea Party (1985) while their highest rated movie together was Angel's Egg (1985). They have not worked together since Lily C.A.T. (1987). They are most known for their animation films together.