Jin-woo, who attends a physical school, visits the home of Min-cheol, a physical education teacher in high school who lives outside the city for vacation. Office worker Soo-hyun, now a college student, Soo-hee, and Min-cheol, who greet Jin-woo with two daughters. A few days later, Min-cheol went on a business trip due to a local seminar. I am sorry to Jin-woo and leave the house. That evening, Soo-hyun got drunk late at night. Complaining over the grievances of office workers. He seduces Jin-woo, saying it's been a long time since he met a man. The next day, Soo-hee approaches Jin-woo after finishing her workout. She says her dad is annoying and doesn't tell her well, and asks her how to stretch. Naturally, she started tempting Jin-woo because she saw her doing with her sister while the skin ship was coming and going.​

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