How many movies have Koji Shiraishi and Rie Kuwana collaborated on?

They have worked on 5 movies together! Their first movie together was Carved: The Slit-Mouthed Woman (2007) while their highest rated movie together was Senritsu Kaiki File Kowasugi! File 04: The Truth! Hanako-san in the Toilet (2013). They have not worked together since Horror and Mystery World Scary! (2023). They are most known for their horror films together.