How many movies have Akio Otsuka and Sakiko Tamagawa acted in together?

They have worked on 6 movies together! Their first movie together was Shuten Doji - The Star Hand Kid (1989) while their highest rated movie together was Ghost in the Shell: Stand Alone Complex - The Laughing Man (2005). They have not worked together since Ghost in the Shell: SAC_2045 Sustainable War (2021). They are most known for their animation films together.