Background of the drama series is at a high school cheerleading club. Sassy Go Go depicts the friendships and loves of youths, while dealing with a harsh educational environment that emphasizes competition.

Set against the backdrop of an incredibly competitive high school, a group of students find solace in cheerleading club, led by their passionate leader, Kang Yun Doo. Along with the social and romantic trials of adolescence, this unlikely group of cheerleaders smile in the face of unreasonable academic expectations.