How many movies have Ikumi Isaka and Kôji Kawano collaborated on?

They have worked on 1 movie together! Their first movie together was ツナガレラジオ〜僕らの雨降Days〜 (2021) and was their highest rated movie together. They have not worked together since ツナガレラジオ〜僕らの雨降Days〜 (2021).