How many movies have Daiki Wakabayashi and Sachi Hamano collaborated on?

They have worked on 8 movies together! Their first movie together was Boku no oppai ga hatsujô shita riyû (2014) while their highest rated movie together was The Ultimate Masturbation (2016). They have not worked together since Kuroi kako-chô: Watashi o semenaide (2017).