How many movies have Hikohiko Sugiyama and Masanori Tominaga collaborated on?

They have worked on 4 movies together! Their first movie together was The Pavillion Salamandre (2006) while their highest rated movie together was Between the White Key and the Black Key (2023). They have not worked together since Between the White Key and the Black Key (2023). They are most known for their drama films together.