How many movies have Rina Hidaka and Yukihiro Kobayashi collaborated on?

They have worked on 2 movies together! Their first movie together was Laidbackers (2019) while their highest rated movie together was Kaguya-sama: Love Is War -The First Kiss That Never Ends- (2022). They have not worked together since Kaguya-sama: Love Is War -The First Kiss That Never Ends- (2022).