As a poor student, who goes to school during the day and works part-time at night, the only motivation he has is to watch his charming neighbor Yu-san every day. Every time he came home from work late, he would see Yu-san interested in him while she wore an extremely sexy outfit that exposed his cleavage, making him unable to take his eyes off that sensitive position. He often watched adult movies and thought about having sex with her one day. While watching a black movie, he overheard her screams, he rushed to help, and this time he hit his eyes again with his exposed breasts that were not well covered, he couldn't control himself, so he risked himself to actively solicit sex, At first, she was shy and afraid that her husband would find out, but because of her lewd nature that could not be hidden, she responded strongly.