Yurine, who is usually sexually frustrated because her husband is away on a long business trip, accidentally sees the penis of her son's friend Kosuke... Kokoro by its strength, she easily seduces him. Yurine, who had underestimated the young man's sexual desire, was violated and made to climax countless times by Kosuke's insatiable stamina, which was not satisfied with just one or two sexual encounters. From that day on, Yurine's body began to scream in pain as she was forced to climax repeatedly...