Zhang Kai took his wife, Liu Qian, and son, Zhang Cheng, to spend the Spring Festival at his brother-in-law Liu Yong's home. While helping Zhang Cheng set off a skyrocket, he blasted a drunken fox spirit out of the sky. Badly injured, the fox spirit pledged herself to Zhang Kai to save her life, promising to help him make money and guide him in capturing wanted criminals.
After Zhang Kai captured a wanted criminal and successfully claimed the reward, the criminal retaliated against him, changing the course of his life.
