There is a Western-style house deep in the mountain, in which beautiful girls are being trained to become sex dolls. One day, Shuujirou receives a phone call from one of his customers. According to the customer, his sex doll, Reika, has run away from his house. Shuujirou decides to retrain her, and hires a new trainer. His name is Hayama Suguru, known for his severe training. Reika hates him and defies Suguru's orders, but he gives her extremely severe training....