How many movies have Kōen Okumura and Mitsuki Honda collaborated on?

They have worked on 1 movie together! Their first movie together was Bakuryū Sentai Abarenjā 20th: Yurusa Rezaru Abare (2023) and was their highest rated movie together. They have not worked together since Bakuryū Sentai Abarenjā 20th: Yurusa Rezaru Abare (2023).