Ryoko Mamiya Name: Ryoko Mamiya Date of Birth: Height: , Cup Size: GSign: UnknownBlood Type: UnknownBirthplace: Unknown Watch JAV Movies Ryoko Mamiya has appeared in You may also like the following JAV Idols... Hasumi Shiori Hosaka Mio Saegusa Natsuki Sonohara Ran Aoi Sumire Nakatsuka