On the day of SAT, which continued to take place even in the era of zombies, high school girls drive themselves to the place of examination.

A mother finds a cigarette in her daughter’s bag. Even though her mother starts to bombard her with questions, the daughter keeps her mouth shut. Then the father returns home from work and begins to suspect the cigarette is not just a cigarette, after all.

In the winter following her college entrance exams, 19-year-old Yurim wanders the streets with her best friend Seonmi, who ran away from her broken home.

Two girls with the same name meet at a swimming pool and quickly become best friends. Yet, the fear of being alone again looms over them.

A group of close friends who attend a private school all have a debilitating crush on the sunny star pupil, Sun-ah. The only member of the group who claims not to is Jin-woo, but he ends up loving her as well.