Forced to obey her father every minute of her life, Baek Ara had no choice but to live as a prim and proper lady. To get back at her oppressive father, Ara decides to enjoy herself at a club... until she's found by Namgoong Yoon, her gentle first love, who coldly introduces himself as Ara's new bodyguard. Shaken by Yoon's coldness, Ara returns home, only to be met with the more shocking news of her imminent marriage. With time running out, can Ara win Yoon over before it's too late?