Three single women in 30s gather and talk about everyday life from work to love. Nothing is more important to them than enjoying a drink after work.

A homicide squad detective, suspected of serial murder, searches for the real culprit.

It tells an unpredictable 24-hour love story of the four-dimensional innocent girl Jung Saet Byeol who was once a troublemaker and the adorkable caring male store manager, Choi Dae Hyun, in the context of a convenience store. They have met each other accidentally 4 years ago, back then Saet Byeol asked Dae Hyun to buy cigarettes for them. Until now, Saet Byeol comes to the convenience store Dae Hyun runs for a part-time job, their hilarious romantic story starts.

Despite their harsh educational environment, the cheerleading club has to keep it together for the students' sakes, and their own.