Xia Chuan, a girl from the third year of high school, experienced strange changes in her body after taking a physical test. After being transformed into a fox demon, she found it difficult to control the sudden power. After bringing a bloody storm to the human world, the manager from the demon world, Ling, mistakenly believed that Xia Chuan had illegally left the demon world. The demon escaped, so the two fought and became happy enemies. After Xia Chuan was forcibly taken to the demon world by Ling, she gradually understood Ling's difficulties and her mission. With super demon power, she embarked on the road of challenging the ghost king and redeeming each other with Ling. Everything seemed to be going well, but they didn't know that they were caught in a huge conspiracy from the beginning.
