How many movies have Hayato Kawai and Natsumi Ikema collaborated on?

They have worked on 3 movies together! Their first movie together was Nisekoi: False Love (2018) while their highest rated movie together was Kaguya-sama Final: Love Is War (2021). They have not worked together since Kaguya-sama Final: Love Is War (2021). They are most known for their romance films together.