How many movies have Ryujin Onizuka and Yûko Hosoe collaborated on?

They have worked on 53 movies together! Their first movie together was Sealed Video 11: Attic Curse (2013) while their highest rated movie together was Sealed Video 56: Utsuro Boat (2021). They have not worked together since Sealed Video 63: Relics of the Abandoned Inn (2023). They are most known for their horror films together.