How many movies have Kazuo Endo and Ryoichi Sato collaborated on?

They have worked on 7 movies together! Their first movie together was Murder on the Sanriku Coast (1987) while their highest rated movie together was Murder Credit - Final Destination Series (2016). They have not worked together since Detective Ushio vs. Case Writer Saeko: Last Family (2017). They are most known for their mystery films together.