When Lee Ji Eun comes back home one day, she sees an unfamiliar looking man talking to her divorced mother. Her mother then explains that the man will be her new step-father. Ji Eun was surprised, but became much more shocked when she notices that the man had a son, Wooyoung. They had to live and go to school together before their parents' wedding and it becomes very awkward. But

When Lee Ji Eun came back home one day, she sees an unfamiliar man with her divorced mother. Her mother then explains that the man will be her new step-father. Ji Eun was surprised but became much more shocked when she notices that he has a son, Wooyoung. He looks very familiar though she knows she's never seen him before. They had to live and go to the same school together before their parents wedding and i