An accidental fall off a cliff caused Xu Yan, a stubborn and intelligent lady from a famous Jiangnan family, to fall off the cliff and lose her appearance and memory. The genius doctor Chu Xun selfishly changed Xu Yan's face to one that was the same as that of his late young senior sister Ke Yue. Xu Yan, who became Ke Yue, not only possessed Ke Yue's peerless appearance, but also bore the love debt of Ke Yue during her lifetime.