How many movies have Hiroshi Kawashima and Nobuhiro Arai collaborated on?

They have worked on 3 movies together! Their first movie together was Shakugan no Shana: The Movie (2007) while their highest rated movie together was Josee, the Tiger and the Fish (2020). They have not worked together since Josee, the Tiger and the Fish (2020). They are most known for their animation films together.