Kim Ji-yeon

The love story of Na Hee-do who manages to become a member of the National Fencing Team and Baek Yi-jin’s whose family goes bankrupt due to the financial crisis. He is forced to take up several part-time jobs and later becomes a sports reporter. In present day, Na Hee-do's daughter, quits ballet and "runs away" to her grandma's house. During her stay, she comes across her mother's diary, through which the story is then told.

Each person is graded through a popular vote against the backdrop of a girl's high school and if they receive an F grade, they become legitimate victims of school violence.