Nice Mother-in-law | 착한 장모| Dong-ho is in a secret relationship with Hyun-joo at work. However, rumors spread about them and they break up. Not long after, Dong-ho goes to his pregnant girlfriend’s house to ask for permission to marry her. There he runs into Hyun-joo who turns out to be his girlfriend’s mother. From lovers to mother and son-in-law – things get risky.