Alley is an aspiring photographer attending Seoul High School. As a senior, she hopes that this year will be the same as her other three years of high school: quiet, undisturbed, and one hundred percent forgettable. Her only friend will be Dohyung Lee, who she's been secretly crushing on since middle school, and the only thing she'll look forward to is attending the prestigious Seoul University of Arts on a full ride, scholarship.

But when five "heart-throb" celebrities show up at her academy for a music video shoot, everything is shooken up.

Alley compares this situation to common cold, it spreads quickly, and dies down just as fast. Soon those pretty boys will be gone and all the craziness will be completely over.

If only life was that predictable...