How many movies have Kanako Maru and Mariko Yamamoto collaborated on?

They have worked on 2 movies together! Their first movie together was Macross Frontier: The Wings of Farewell (2011) while their highest rated movie together was PERSONA3 THE MOVIE #1 Spring of Birth (2013). They have not worked together since PERSONA3 THE MOVIE #1 Spring of Birth (2013).