How many movies have Obihiro Kitagawa and Tarō Araki collaborated on?

They have worked on 4 movies together! Their first movie together was Kanjiru wakazuma no amai mitsu (2012) while their highest rated movie together was Onna sagi-shi to bijin singer: O-atsui no wa dotchi? (2015). They have not worked together since Onna sagi-shi to bijin singer: O-atsui no wa dotchi? (2015).