How many movies have Keiichiro Kawaguchi and Showtaro Morikubo collaborated on?

They have worked on 3 movies together! Their first movie together was The New Prince of Tennis BEST GAMES!! Fuji vs Kirihara (2019) and was their highest rated movie together. They have not worked together since The New Prince of Tennis BEST GAMES!! Fuji vs Kirihara (2019). They are most known for their animation films together.