How many movies have Tatsuya Mukai and Tatsuyuki Iizuka collaborated on?

They have worked on 6 movies together! Their first movie together was Stray Dogz (2015) while their highest rated movie together was Stray Dogz 3 (2016). They have not worked together since Stray Dogz 8 (2018). They are most known for their crime films together.