How many movies have Ken Okawara and Tetsuro Amino collaborated on?

They have worked on 6 movies together! Their first movie together was Broken Blade: The Time of Awakening (2010) while their highest rated movie together was Broken Blade: Fortress of Lamentation (2011). They have not worked together since Broken Blade: Fortress of Lamentation (2011). They are most known for their action films together.