How many movies have Hiroaki Hirata and Shin Kibayashi collaborated on?

They have worked on 2 movies together! Their first movie together was Kindaichi Case Files Movie 1: The Opera House Murders (1996) while their highest rated movie together was Kindaichi Case Files Movie 2: Deep Blue Massacre (1999). They have not worked together since Kindaichi Case Files Movie 2: Deep Blue Massacre (1999).