The hyper-realistic school life of Ji-hye and her friends over the school’s rule of no dating on campus!
Famous for its high graduation rate, all-student dormitory system and ‘No dating on campus’ policy — Ji-hye got into the prestigious and private Neungji High School.
Imitating her older sister who had always done well at everything, Ji-hye decides to study hard at this school as well.
But one day, the teacher calls Ji-hye and instructs her to write down a list of student couples who have violated the school’s rule of no dating on campus.
To meet the teacher's expectations, she went late at night to a secret meeting place for couples; There, she encounters an unexpected person, Hae-on.
Ji-hye, who dropped the list in surprise and ran away, soon realizes her mistake and visits Hae-on the next day.
Instead of resenting the very nervous Ji-hye, Hae-on understands her and asks Ji-hye to help him build a bridge to resolve the misunderstandings he has with Jae-young, who is Ji-hye’s best friend and Hae-on’s younger brother……?!