Min-soo and Jae-hyeok is in a good father-and-son relationship. But one day, Min-soo brings Jae-hyeok’s young stepmother, Da-hee. Jae-hyeok leaves home to wander around, ran into Da-hee’s friend, Na-yeon, and…

Da-hee gets married to Min-soo who is older than her. Thanks to him, he also gets a son who is not too old, Jae-hyuk, who she tries to get acquainted…