Min-sang and Yoo-ra is already married for two years. Min-sang lives with his wife Yoo-ra and her sister Yoo-mi. Min-sang used to live alone because his parents died early, and Yoo-ra lived alone ...

Dong-gook, who is thinking of remarrying, introduces his stepmother Kyeong-sook to his son Jin-yeong. At the family gathering, Jin-yeong is surprised to see his stepmother's younger brother ...