How many movies have Kazumi Wakimoto and Tsuyoshi Imai collaborated on?

They have worked on 4 movies together! Their first movie together was Oblivion Island: Haruka and the Magic Mirror (2009) while their highest rated movie together was Magical Sisters Yoyo & Nene (2013). They have not worked together since Journey to the Shore (2015). They are most known for their animation films together.