How many movies have Asami and Chisato Ōgawara collaborated on?

They have worked on 2 movies together! Their first movie together was Groper Train: School Uniform Hunter (2007) while their highest rated movie together was Female Prisoner Ayaka: Bitch-Training Torment (2008). They have not worked together since Female Prisoner Ayaka: Bitch-Training Torment (2008).