How many movies have Ayumi Shibata and Inaba Akira acted in together?

They have worked on 7 movies together! Their first movie together was Uta Doki! Pop Classics Vol.1 (2007) while their highest rated movie together was Uta Doki! Pop Classics Vol.6 (2007). They have not worked together since Uta Doki! Pop Classics Vol.9 (2008).