How many movies have Kohei Kiyasu and Tow Ubukata collaborated on?

They have worked on 3 movies together! Their first movie together was Fafner in the Azure: Right of Left -Single Program- (2005) while their highest rated movie together was Fafner: Behind the Line (2023). They have not worked together since Fafner: Behind the Line (2023). They are most known for their animation films together.