How many movies have Kenji Nagai and Koji Abe collaborated on?

They have worked on 6 movies together! Their first movie together was Kaiki Senyaichiya Monogatari: Sen no Maki (1991) and was their highest rated movie together. They have not worked together since Kaiki Senyaichiya Monogatari: Yoru no Maki (1991). They are most known for their horror films together.