How many movies have Seiran Kobayashi and Yuko Sanpei acted in together?

They have worked on 2 movies together! Their first movie together was Butt Detective: Mystery of the Ruins of Tentoumu (2020) while their highest rated movie together was Healin' Good♡Precure: GoGo! Big Transformation! The Town of Dreams (2021). They have not worked together since Healin' Good♡Precure: GoGo! Big Transformation! The Town of Dreams (2021).