How many movies have Yasuyuki Oda and Yuichi Mukai collaborated on?

They have worked on 4 movies together! Their first movie together was Cursed Psychic Video XXX 2 (2016) while their highest rated movie together was Cursed Psychic Video XXX 7 (2017). They have not worked together since Cursed Psychic Video XXX 9 (2017). They are most known for their horror films together.