How many movies have Motosuke Takahashi and Yuji Nunokawa collaborated on?

They have worked on 6 movies together! Their first movie together was Lupin the Thief--Enigma of the 813 (1979) while their highest rated movie together was The Wonderful Adventures of Nils (1981). They have not worked together since Lullaby for Wednesday's Cinderella (1987). They are most known for their animation films together.