How many movies have Shuichi Oshima and Toshikazu Kamiaka collaborated on?

They have worked on 3 movies together! Their first movie together was Kamen Rider Zi-O the Movie: Over Quartzer (2019) and was their highest rated movie together. They have not worked together since Kamen Rider Saber: Trio of Deep Sin (2022). They are most known for their adventure films together.