Woo-jae and Yeon-soo had been platonic friends for years when they went their separate ways. Now, ten years later, they bump into each other again and are forced to re-think things. Will they have the courage to risk their friendship for love?

Hyun-tae, In-chul and Min-soo have been best friends since childhood. Their relationship is forever changed after Hyun-tae's mother asks In-chul to commit insurance fraud by destroying her arcade.

In-ho is willing to do anything to protect his first love, Mi-ju, including murder. They cannot forget each other while In-ho is in prison, but their love does not go smoothly.

Jin-hyeok opens a cake shop in an old antique shop, hiring Seon-woo, Korea's best pastry chef, who fell in love with him in high school. Also there, are Su-young, crushing on Seon-woo, ex-boxer Ki-beom, and Seon-woo's French ex-boyfriend.

When Jung-ha loses her husband in an accident, Naru, her husband's secret lover, comes to her. Naru begs Jung-ha that she will do anything if only she will let her stay at her house. Jung-ha denies her at first, but eventually their strange arrangement of living together begins.

Unable to continue caring for their mother, who is suffering from dementia, a family embarks on one final trip together. During the journey, a long-buried family secret quietly surfaces, forever changing their understanding of one another.