How many movies have Mitsuru Imoto and Satoru Koyama collaborated on?

They have worked on 3 movies together! Their first movie together was Fist of the North Star: The Legend of the True Savior: Legend of Raoh-Chapter of Death in Love (2006) and was their highest rated movie together. They have not worked together since Fist of the North Star: Legend of Raoh - Chapter of Fierce Fight (2007). They are most known for their animation films together.