The 28-year-old career king Liu Ruoxi died suddenly while working overtime, and her soul passed through a little white rabbit. She was rescued by the 19-year-old young prince Li Guan who was living among the people. She can understand human speech, occasionally transforms into a human form, and accompanies him to fight against powerful officials and seize the throne, but she is surrounded and suppressed because of her identity as a demon. When Li Guan was forced to marry Xizuo from an enemy country, she risked her life and died in his arms: "How about you be a rabbit in the next life?"
