How many movies have Seino Asuka and Seto Kazuya acted in together?

They have worked on 2 movies together! Their first movie together was Messiah -The Legend of Shiroh Amakusa- / Beautiful Garden -A Profusion of Flowers- (2018) and was their highest rated movie together. They have not worked together since A Fairy Tale -The Spirit of the Blue Rose- / Charme! (2019).