How many movies have Chiaki Takahashi and Yu Kahara acted in together?

They have worked on 1 movie together! Their first movie together was THE IDOLM@STER 765 MILLIONSTARS HOTCHPOTCH FESTIV@L!! (2018) and was their highest rated movie together. They have not worked together since THE IDOLM@STER 765 MILLIONSTARS HOTCHPOTCH FESTIV@L!! (2018).