Sister-in-law's occupation

My brother came back from the United States. Hyung-soo's friend Shin-woo called Hyung-soo to the guest salon W to deal with such a brother-in-law. Hyungsoo, who met Se-yeon for the first time, drank with Se-yeon until he was drunk. The next day, he looked at his brother's house and looked like his brother. At Soon-gil's house, Hyung-soo met Soon-gil's wife, Hyung-soo, and Seo-yeon, who was beaten badly yesterday. west Yeon and Hyung Soo were surprised to see each other, but they kept each other's secrets and maintained a good and dangerous relationship with each other. Seo-yeon continues to work at the bar, and Hyung-soo starts dating Ji-woo, a woman he met at the bar. Hyung-soo goes to bed with Ji-Yu, and his heart for See Yeon gradually grows. The sister also greeted the people coming to the bar who were worried about Hyung-soo. Eventually, the two became jealous of each other, revealed their feelings, and started dating. The two coveted each other's bodies and had several hookups while Junki left home for work.