Ha Yoon Seo is single and works as a team leader at a large company. She is attractive, has a nice personality, and is respected at her company. When she was younger, she took her younger brother and left her family because of domestic violence. She has now matured into a confident and pragmatic person. Her boyfriend is Seo Joo Won, who is younger than her. He works as a staff member at the same company where Yoon Seo works. To her surprise, Yoon Seo learns that her boyfriend is the son of the chaebol family that runs her company. Joo Won's mother then reaches out to Yoon Seo to break up with her son and offers her money to do so. Yoon Seo believes fairy tales doesn't exist in her world and decides to take the money from his mother and break up with Joo Won. But, Joo Won believes in love and follows his heart faithfully. He tries his best to change Yoon Seo's mind. (Source: AsianWiki) Adapted from the webtoon "Cinderella at 2 A.M." (새벽 두 시의 신데렐라) by Algome (아이고메).