How many movies have Koji Shiraishi and Yui Nakamura collaborated on?

They have worked on 3 movies together! Their first movie together was Senritsu Kaiki File Kowasugi! Preface: True Story of the Ghost of Yotsuya (2014) while their highest rated movie together was Senritsu Kaiki File Kowasugi! Final Chapter (2015). They have not worked together since Seishun Gunjyoiro no Natsu (2015). They are most known for their horror films together.