How many movies have Katsutoshi Kobayashi and Miyu Irino collaborated on?

They have worked on 1 movie together! Their first movie together was Mr. Osomatsu: The Soulful Takoyaki Party and the Legendary Sleepover (2023) and was their highest rated movie together. They have not worked together since Mr. Osomatsu: The Soulful Takoyaki Party and the Legendary Sleepover (2023).