How many movies have Kyōichi Shiino and Kōji Hakamata collaborated on?

They have worked on 1 movie together! Their first movie together was Lily Chou-Chou 2010.12.15 Live "エーテル" (2022) and was their highest rated movie together. They have not worked together since Lily Chou-Chou 2010.12.15 Live "エーテル" (2022).