True Beauty is a romantic comedy about a high school girl Lim Ju Gyeong, who rises to pretty girl fame after she masters the art of make-up from YouTube. She turns into a goddess because of her makeup skills, but would rather die than reveal her bare face to anyone. It tells her love story with the only boy that saw her without makeup, Lee Su Ho. Lee is an attractive and handsome boy who appears cold because of his dark past but is actually very caring. They grow when they meet each other sharing their secrets and finding love with each other, but can Su Ho make Ju Gyeong find her true beauty?