How many movies have Shigeto Tsuji and Takumi Yamazaki collaborated on?

They have worked on 4 movies together! Their first movie together was Shimajiro and Fufu's Great Adventure: Save the Seven-Colored Flower! (2013) while their highest rated movie together was Shimajiro and the Rainbow Oasis (2017). They have not worked together since Shimajiro to Ururu no Heroland (2019). They are most known for their fantasy films together.