How many movies have Hironobu Komiya and Natsuna Watanabe acted in together?

They have worked on 1 movie together! Their first movie together was Ms. Koizumi Loves Ramen Noodles SP 2019 (2019) and was their highest rated movie together. They have not worked together since Ms. Koizumi Loves Ramen Noodles SP 2019 (2019).