The girl fell from upstairs but inexplicably went to the Fantasy Empire, a world parallel to the real society. She became Princess Jiandie in the city of Karuoya, and successfully became a spy in the Jia Palace, trying to capture the king there. Unexpectedly, she captured the heart of the prince. After getting the love she wanted, she returned to the real world. She met the prince in Xi'an society, but the prince had lost his memory. What should she do?