Mourning the story of the widow

Mrs. yukiyuki, a college professor, was still a female student when she married. For several years he had been trained in SM for every night from a patient who had a strong sense of cruelty. But the professor was overnight, and suddenly died of a brain infarction, and he was wary of loss. However, the smell of the smell which is smelled under the mourning clothes is smelled, and the beast appears. Sophie becomes a beast of sexual desire and is craving extreme training.