Sayuki, the wife of a university professor, was still a college student when she got married.For several years, she was given SM training every night by her husband, who has a strong sense of sadism. wasHowever, when she sniffs out the sexual odor of a female under her mourning clothes, beasts appear... Spanking, extreme toy torture, intense slap and rose whip, anal expansion copulation single whipping, glycerin enema.Sayuki turns into a beast of M sexual desire and craves her extreme training!