How many movies have Kazunari Kume and Masahiro Koyama collaborated on?

They have worked on 3 movies together! Their first movie together was Creamy Mami: Forever Once More (1984) while their highest rated movie together was Maison Ikkoku: The Final Chapter (1988). They have not worked together since Maison Ikkoku: The Final Chapter (1988). They are most known for their animation films together.