Nangong Xue has an angelic face, a noble origin, a four-dimensional character, sometimes indifferent, sometimes sinister... And versatile. She graduated from Harvard at the age of 16. People only know that she is a genius girl with an IQ of 300, but they don't know that she is the world's number one killer - An Xue, the master of Xueyue Palace. Behind her efforts are many tears and blood. Xueer has been interested in ancient martial arts since she was a child. In an accident, she discovered that she had learned ancient martial arts and gained the legendary internal power. Is this destiny? Such an outstanding girl has countless suitors around her, but Xue'er has not yet thought about falling in love, and Xue'er has no feelings for them. Of course, such a perfect girl is destined to meet her true love. Let's see how Xue'er accidentally travels through time and turns...