21-year-old "Koyama Aoi" with slender beautiful big breasts makes her AV debut! As the eldest of three sisters, she is very serious and has only had a boyfriend... so she has little experience with sex, but she is at an age where she is very interested in erotic things. She exposes her body as it was when she was born, and has sex in front of people, writhing her body in pleasure and climaxing! AV fans cannot help but get excited by her appearance, which is unimaginable from her pure appearance! Her innocence, as she blushes with embarrassment, is outstanding. She wants to feel good, she wants to cum, and she wants to know the real pleasure of sex in AV. This is her first sex in front of the camera, and then she is attacked by two muscular male actors in a spectacular threesome! She learns the pleasure of being a woman! Don't miss it.