We headed to Nasuhara City, where Sora-san (23 years old), a young wife living in the countryside, lives to meet her. She met her current husband when they were medical students and got married after graduation. It was the first time for both of them to have sex. Her husband works as a doctor and has decided not to have children until he is fully grown, so he is a serious man who always uses a condom when having sex. One day, she happened to see an adult video in which she saw a scene of a man ejaculating inside her and drinking semen. Excited and interested in the scene, she decided to apply to Cosmos Video. She is pure and innocent, and even when she arrives at the meeting place, she is a little nervous. The place where she drinks semen for the first time is actually outdoors. She is nervous and excited, but she gives a blowjob to the first man's cock, but she does her Kokoro. And she drinks semen for the first time. After that, they go around to date spots, and the two of them get to know each other and have sex. The distance between them is reduced, and they experience their first creampie while feeling love. At night, she becomes open-minded after drinking alcohol, wears a cosplay costume, and is toyed with and loses her reason. Her erotic instincts are awakened, and she orgasms over and over again, her body spasming. The woman, satisfied with the stimulating sex she could never experience with her husband, says goodbye in the afterglow.