How many movies have Tomomi Kawatsuma and Tomonori Ochikoshi collaborated on?

They have worked on 4 movies together! Their first movie together was Saint☆Young Men (2013) while their highest rated movie together was Dou kyu sei – Classmates (2016). They have not worked together since Dou kyu sei – Classmates (2016). They are most known for their animation films together.