Sung geun, a physical education teacher, is at risk of losing his job when the school decides it needs an English teacher instead of a PE teacher. Therefore, he starts to devise a plan to change his job as an English teacher.
Two police stations from neighboring precincts are in constant fierce competition with each other, including for the Officer of the Year award. But then a high-profile case forces them to work together.
A policeman in debt is constantly called by a woman working to collect his debt. When they meet by accident they attracted to each other, and does not realize they already have a hostile phone-relationship.
