How many movies have Toshihiko Masuda and Yuko Kobayashi collaborated on?

They have worked on 3 movies together! Their first movie together was The Piano Forest (2007) while their highest rated movie together was Teasing Master Takagi-san: The Movie (2022). They have not worked together since Teasing Master Takagi-san: The Movie (2022). They are most known for their animation films together.