Yuan Shuai (Feng Shaofeng), an animal keeper who is heavily in debt, goes on blind dates with rich girls in order to pay off his million-dollar debt, but he accidentally falls in love with Bai Xianchu (Liu Yifei), a fox demon who came to the human world to repay her gratitude. In order to prevent the human and the demon from falling in love, Yun Zhonghe, the director of the Monster Management Bureau, sends Captain Hong Sicong of the Magic City Squad to capture the illegal fox demon Bai Xianchu. In order to find his beloved fox demon, Yuan Shuai bravely enters the demon world...