How many movies have Ryu Suzuki and Yuki Kajiura collaborated on?

They have worked on 12 movies together! Their first movie together was The Garden of Sinners: Overlooking View (2007) 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). They are most known for their animation films together.