How many movies have Tetsuro Amino and Yoshihisa Hirano collaborated on?

They have worked on 3 movies together! Their first movie together was Broken Blade: The Time of Awakening (2010) while their highest rated movie together was Broken Blade: The Path of Separation (2010). They have not worked together since Broken Blade: The Gap Between Life and Death (2011). They are most known for their action films together.