How many movies have Houka Kinoshita and Nao Omori acted in together?

They have worked on 8 movies together! Their first movie together was Harmful Insect (2001) while their highest rated movie together was Nagai Nagai Satsujin (2008). They have not worked together since Nagai Nagai Satsujin (2008). They are most known for their drama films together.