She is an orphan who traveled from the Tang Dynasty to a parallel time and space. Her ringtone is as clear as her clear voice, and the silver bell sways like her smile. He is a down-and-out young man who was sold to the slave market by sand thieves. He is submissive and innocent. When they first met, she failed to buy a slave and was sold instead. After escaping from danger, she was the master and he was the servant. She is cold-faced and warm-hearted, while he is hot-tempered on the outside and cold on the inside. The two people, who were not bound by each other in the first place, intersect due to fate.