In order to save her ill father, Yoo Yeon-Woo makes a dangerous deal to deceive the members of the esteemed Tae-Seong Group. Her task is to pretend to be her estranged twin sister, who disappeared just before her marriage to Tae-Seong’s youngest son, Cha Ki-Tae. Yeon-Woo only needs to keep up the act for six months, but in the fifth month, she is...