How many movies have Hirayama Shinobu and Kasumi Kyouka collaborated on?

They have worked on 1 movie together! Their first movie together was Otome wa Boku ni Koishiteru: Trinkle Stars The Animation (2021) and was their highest rated movie together. They have not worked together since Otome wa Boku ni Koishiteru: Trinkle Stars The Animation (2021).