How many movies have Masaru Yanaka and Yu Takanaka collaborated on?

They have worked on 2 movies together! Their first movie together was The Garden of Sinners: A Study in Murder (Part 2) (2009) while their highest rated movie together was Demon Slayer -Kimetsu no Yaiba- The Movie: Mugen Train (2020). They have not worked together since Demon Slayer -Kimetsu no Yaiba- The Movie: Mugen Train (2020).