Choi Na Ri wanted her daughter Moon Sa Na to marry Wang Chul. Sa Na did not mind her mother's plan even though she has never seen Wang Chul in person. But everything changed when she fell for someone.
Moon Sa Na told her mother she liked Sunny's boyfriend, Wang Yoon Gi. Choi Na Ri looked into his background and found out he was a son of a school teacher and a senior construction engineer. Choi Na Ri, who had bug ambition and plan, refused to let her son like Yoon Gi.
Sa Na convinced her brother to help her in making the man hers. But somehow all their attempt was unsuccessful. Moon Sa Na waited for everything to go as she planned for months.
When Sa Na saw Sunny's boyfriend six months back, she fell in love with him at first sight. The way Yoon Gi treated Sunny with utmost care and affection made her want to go after him. Every time she tried to get in between them, Moon Sung Kyung always spoils the plan. Today she meticulously planned everything to ruin their relationship.
