How many movies have Aiko Sonobe and Mika Doi collaborated on?

They have worked on 4 movies together! Their first movie together was Futari wa Precure Splash☆Star the Movie: Tic-Tac Crisis Hanging by a Thin Thread! (2006) while their highest rated movie together was One Piece Film: Strong World (2009). They have not worked together since One Piece Film: Z (2012). They are most known for their adventure films together.