Cast:
Gong Hyo Jin – Na Bo Ri
Gong Yoo – Park Tae In
Kim Da Hyun – Ji Hyun Woo
Choi Yeo Jin – Noh Jem Ma
A tough teacher with an attitude and her cute student have an exciting time at school. Bori was a legend in high school for being a troublemaker and getting into fights. Then one day she gets expelled from school for being involved in a fight. After overcoming numerous hardships, she gets a job as a substitute teacher at her old high school. She is excited with the fact that she will be able to meet her old teacher, Ji Hyeon-woo, whom she has had a crush on for years. But a troublemaker in her class, Tae-in, keeps getting her into trouble. Tae-in is a smart and an athletic student.