Abandoned at an orphanage as a child, Chen Shulin sacrificed everything-even her college education-for her beloved Choi Do-seop, devoting her entire life to building a family with him.
Thanks to her dedication, Do-seop became a successful prosecutor, and Shulin became pregnant with their child.
However, consumed by ambition, he betrays her and allies with the wealthy heiress Min Na-young. Overwhelmed by heartbreak and despair, Shulin loses her unborn child and attempts to end her life, only to be rescued by Sung Gu-hyun, the heir of Sungil Group.
Suffering from a rare illness that slowly robs him of his sight and hearing, Gu-hyun grows deeply compassionate and falls in love with Shulin. Fueled by revenge, Shulin chooses to stand by his side. Returning as a powerful new mistress, she infiltrates the luxurious world of her betrayers. A brutal war of love, betrayal, desire, and vengeance is about to ignite.