Hyukjae abadone by his fiance . His fiance leave him alone without explaination and just dissappear , leaving no trace . But that's happend 3 years ago and hyukjae already move on but one day , the president of the company where he worked assign him to be the personal asistant for his son since the president will retire soon . And when he meet the president's son , he felt like he reopened his old wound . What worsened his situation is , he's forced to lived under one roof as him  and he act totally opposite from hyukjae's ex-fiance which makes hyukjae get annoy by his jerk / bratty attitude!!