How many movies have Ei Aoki and Makiko Nitta collaborated on?

They have worked on 2 movies together! Their first movie together was The Garden of Sinners: Remaining Sense of Pain (2008) while their highest rated movie together was The Garden of Sinners: Remix -Gate of seventh heaven (2009). They have not worked together since The Garden of Sinners: Remix -Gate of seventh heaven (2009).