How many movies have Keiichi Sonobe and Yuriko Yamaguchi acted in together?

They have worked on 4 movies together! Their first movie together was One Piece Special: Protect! The Last Great Stage (2003) while their highest rated movie together was One Piece Episode of East Blue (2017). They have not worked together since One Piece Episode of East Blue (2017). They are most known for their adventure films together.