A woman who is a combination of genius and idiot was originally a girl from a happy and beautiful family, but when she was eighteen years old, she came to the Tang Dynasty, the most prosperous dynasty in ancient China, because of a mysterious bracelet. She met a mysterious man Xiaoyun. Will this man who looks like a beggar bring mystery to her? What adventures will his true identity bring them to? What will be the final outcome of the two of them?