A drug squad attempts to take down a criminal organization and they must go undercover to do so, so they begin working at a chicken restaurant, that becomes famous for its delicious chicken. Due to the unexpected popularity, the detectives find themselves in a situation they never expected.

Seok-geun, an ex-rollercoaster-designer-turned-taxi-driver, loves his wife, Dam-deok. What he also loves is playing with fire on secret nights out. But Dam-deok’s sudden death leaves Seok-geun miserable and heartbroken. Bong-soo is the boring and prude husband of Seok-geun’s sister, Mi-young. His Italian restaurant business looks lackluster, and so is his marriage, until he meets Jenny, who later gets a job at Bong-soo’s restaurant. Fond of Jenny’s personality and good humor, Mi-young decides to hire Jenny as a housekeeper for her brother, Seok-geun, to keep him company. Will these four people be able to get along with one another?

A story about three friends who just turned twenty; an age where you can do whatever you want, love whoever you want with opportunities abroad.