How many movies have Noriko Hidaka and Shuichi Ikeda acted in together?

They have worked on 6 movies together! Their first movie together was Nadia: The Secret of Blue Water - The Motion Picture (1991) while their highest rated movie together was One Piece Episode of East Blue (2017). They have not worked together since Detective Conan: The Story of Ai Haibara: Black Iron Mystery Train (2023). They are most known for their animation films together.