How many movies have Rei Mikamoto and Takeshi Sone collaborated on?

They have worked on 3 movies together! Their first movie together was Bloody Chainsaw Girl (2016) while their highest rated movie together was Bloody Chainsaw Girl Returns: Giko Awakens (2019). They have not worked together since Bloody Chainsaw Girl Returns: Revenge of Nero (2019). They are most known for their horror films together.