Where Sinb is a VERY famous youtuber and dancer, a cold looking girl on the outside but has a child-like attitude on the inside which make her unnie's protect her like crazy, she is a secret fan of one of the biggest singer in the industry right now and she can't believe that she'll meet HER in an unexpected place and unexpected time.

Yuju loves Sinb eversince they are High School and now that they are in college they rarely see each other. Does Yuju's love for Sinb change or it just getting stronger.