How many movies have Ryusei Nakao and Yuko Matsuo collaborated on?

They have worked on 3 movies together! Their first movie together was Go! Anpanman: The Shining Star's Tear (1989) while their highest rated movie together was Go! Anpanman: The Secret of Tsumiki Castle (1992). They have not worked together since Go! Anpanman: The Secret of Roll and Lola's Floating Castle (2002). They are most known for their family films together.