She is just an ordinary girl. He is just an emperor. She confessed to a boy she had a crush on for a long time, but was viciously insulted by him. An accident caused her to travel to ancient times. She thought she could forget him and start over. But fate kept playing tricks on her, and just when she was about to forget him, they reunited. He didn't remember her, he only knew that he was a disgraced fifth prince who lost his mother when he was young and lived a half-dream and half-awake life every day. Soon he met her and she helped him ascend to the throne. But he repaid kindness with hatred and made her lose her heart. . . .