After a car accident, Xu Xi Xi wakes up with no memory of who she is. All she knows is that she feels an instant connection with her mysterious bodyguard, Lu Jin Yan. But when a childhood friend, Ding Bei Fan, reveals that she isn't really Xi Xi at all—but someone named An Yue who just looks like her—her world turns upside down.

As An Yue begins to uncover the truth about her past, Jin Yan stays by her side. But he, too, is hiding secrets of his own. Together, they must navigate a web of mystery, identity, and hidden motives to find out who she truly is.