How many movies have Fumiaki Kouta and Manabu Akita collaborated on?

They have worked on 4 movies together! Their first movie together was Bleach the Movie: The DiamondDust Rebellion (2007) while their highest rated movie together was Blood-C: The Last Dark (2012). They have not worked together since Blood-C: The Last Dark (2012). They are most known for their animation films together.