Being the second in line inheritor of Jung Holdings, Jung Soo Yeon (Jessica, 24) was ordered to return to South Korea from Los Angeles to help her brother, Jung Yun Ho (27), to manage the company. Upon returning to Korea, she met Kim Woo Bin (26) who is the sole inheritor of Lafeu Hotel. Due to Yunho and Sooyeon's close relationship, Woobin mistook Sooyeon for Yunho's secret lover as Yunho was already engaged to Tiffany Hwang (24), the daughter of Minister Hwang. It was only until he was invited over to the Jung manor for dinner that he found out their actual relationship.

Meanwhile, Sooyeon was appointed as the senior manager of Jung Holdings. In the company, she was reunited with her first love, Yoon Doo Joon (26), who is the legal consultant for Jung Holdings. They both broke up because Doojoon chose a 'good and promising future' enticed by Chairman Jung and gave her up in exchange. This painful love was the reason why she did not want to come back to Korea. 

Due to the collaboration between Lafeu Hotel and Jung Holdings, Woobin has to make frequent trips to the latter and had many interactions with Soo yeon. He later found out that Doojoon was her first love and what happened between them, he taught her how to walk out of the pain and the two grew closer and gradually fell in love with each other. At that moment where everyone thought that it was a happy ending, Doojoon...