How many movies have Takahiro Sakurai and Yasufumi Soejima collaborated on?

They have worked on 1 movie together! Their first movie together was Donten: Laughing Under the Clouds - Gaiden: Chapter 1 - One Year After the Battle (2017) and was their highest rated movie together. They have not worked together since Donten: Laughing Under the Clouds - Gaiden: Chapter 1 - One Year After the Battle (2017).