How many movies have Nao Oikawa and Yumi Sugimoto acted in together?

They have worked on 4 movies together! Their first movie together was Engine Sentai Go-Onger: Bom Bom! Bom Bom! Net de Bong!! (2008) and was their highest rated movie together. They have not worked together since Engine Sentai Go-Onger: 10 Years Grand Prix (2018). They are most known for their adventure films together.