How many movies have Yasuko Kobayashi and Yū Kamio collaborated on?

They have worked on 6 movies together! Their first movie together was Kamen Rider × Kamen Rider OOO & W Featuring Skull: Movie Wars Core (2010) while their highest rated movie together was Kamen Rider Amazons Season 1 the Movie: Awakening (2018). They have not worked together since Kamen Rider Amazons The Movie: The Final Judgment (2018). They are most known for their science fiction films together.