Rika Omi, Mizuki Yayoi, and Miu Arioka are attacked mercilessly by rapists and sadistic masochists on their trip. Their friends, Asane, Yukari, and Mio, meet a group of middle-aged gentlemen by chance and quickly become friendly. However, these men are actually rapists who drug women and continue to rape them. They make the women sleep and bring them to their rooms. Then, the women fall victim to the men's claws...