A turbulent divorce story of the Song family that ends in the discovery of romance and familial love. The Song family includes a frugal father, a cute but materialistic mother, and four adult children with their own quirks and family troubles.

Hoon-Nam knows about love theoretically, but he rejects falling in love. Jung-Eum wants to fall in love, but, due to her difficult situation, she gives up on finding love. Hoon-Nam and Jung-Eum meet and develop a relationship romantically.

A reinterpretation of Saimdang from the Joseon times. She was a genius artist and passionate lover. Lee Young-ae takes on two roles; a college professor who specializes in Korea Art History and Saimdang.

When Jo Gang-Ja attended high school, she was notorious for fighting. She gave birth to her daughter A-Ran in her late teens and became more responsible. Her daughter A-Ran is now a high school student, but A-Ran is bullied at school. Jo Gang-Ja decides to go back to high school to protect her daughter. Jo Gang-Ja becomes a high school student again.

P4: are the new recruits in the violent crimes unit at Gangnam Police Station. The journey of four young cops as they fumble, learn, fall in love and find their way to becoming people the citizens can trust.