Rich and privileged Lida goes abroad to take cover from the unknown blackmailer who is after her life, leaving impoverished Yooi behind to secretly take her place. To ensure Yooi's safety, she is forbidden from leaving the luxurious mansion, and is kept under the watchful eyes of Lida's faithful bodyguard, Ilya. In the midst of these life-and-death situations, Gaon's love for Yooi grows even though he is ignorant of her true identity. Gaon vows to no longer be the evil man he has been in his desire to give his father political power. Meanwhile in a foreign land, Lida feels anxiety over her decision to leave Yooi with Gaon. Find out how the identical twins Lida and Yooi survive these life-threatening events and make their way to their ultimate love, Gaon.