After catching her husband Yu Jin in the act of cheating with her friend Ae Ra, Gyeo Ul seeks revenge against Ae Ra, who becomes the target of her anger. The discovery of the affair leads to a shock so severe that Gyeo Ul experiences lock-in syndrome and loses her eyesight. Gyeo Ul finds herself entangled with Se Rin, an heiress who possesses wealth beyond measure. Se Rin exudes an air of arrogance and coldness towards others, showing no mercy towards anyone who betrays her.