Constantly overshadowed by her best friend, Jung Soo Min, and her husband, Park Min Hwan, Kang Ji-won (Park Min-young) has endured a lifetime of suffering in silence. But when she receives a devastating diagnosis, her world is shattered beyond repair. As the cruel reality of her impending death sinks in, Ji-won is faced with the ultimate betrayal: her husband and friend plotting to cash in on her demise. However, surviving a staged death, she is thrust back in time, ten years into the past, with a newfound determination for revenge. With the help of her loyal boss, Yoo Ji Hyuk (Na In-woo), Ji-won meticulously crafts a plan to reclaim her life and punish those who wronged her.
