"Beast-controlling Transformation Starts with a Compulsory Contract with the Nine-tailed Demon Fox" In 2036, unknown energy radiation caused animals around the world to evolve into bloodthirsty monsters. In order to protect themselves, humans developed the art of beast-controlling. Su Chen, a good-for-nothing high school student, activated the contract system in a desperate situation, and accidentally formed a contract with the nine-tailed demon fox Tushan Yueyue. In order to unlock the contract, one person and one fox embarked on a journey. In the process, they uncovered a big conspiracy secretly controlled by the alliance to subvert the world.
