How many movies have Hiroshi Haraguchi and Minako Kotobuki collaborated on?

They have worked on 3 movies together! Their first movie together was Towa no Quon 1: The Ephemeral Petals (2011) while their highest rated movie together was Towa no Quon 2: Dancing Orchid in Chaos (2011). They have not worked together since Fusé: Memoirs of a Huntress (2012). They are most known for their action films together.