How many movies have Jirō Ishikawa and Minami Aoyama collaborated on?

They have worked on 5 movies together! Their first movie together was New Hotaru The Hyper Swindler (2005) while their highest rated movie together was New Hotaru The Hyper Swindler 4 (2006). They have not worked together since Hotaru Special (2007). They are most known for their drama films together.