When he becomes king, Lee Soo hires the Flower Crew matchmaking agency to make a noble woman out of his first love, Gae-Ddong. Ma Hoon, Young-soo and Do Joon try to fulfill their client's request.

高中生玉灿美（辛睿恩 饰）的亲哥哥在学校跳楼身亡，学校和警方都一口咬定哥哥是自杀。觉得另有内情的玉灿美，决定转校，誓要找出真凶为哥哥复仇。