How many movies have Shokichi Kaneda and Toshihiko Sahashi collaborated on?

They have worked on 2 movies together! Their first movie together was Kamen Rider Reiwa: The First Generation (2019) while their highest rated movie together was Kamen Rider Zi-O NEXT TIME: Geiz, Majesty (2020). They have not worked together since Kamen Rider Zi-O NEXT TIME: Geiz, Majesty (2020).