How many movies have Hina Otsuka and Riko Tachibana acted in together?

They have worked on 1 movie together! Their first movie together was D1-210 Hermaphrodite Lesbian CLIMAX Riko Tachibana x Hina Otsuka (2006) and was their highest rated movie together. They have not worked together since D1-210 Hermaphrodite Lesbian CLIMAX Riko Tachibana x Hina Otsuka (2006).