The story takes place in an era when the Beast Control Sect is declining and the order of reincarnation is in turmoil. The protagonist Zhou Liangyi, a modern animal behaviorist who died in a laboratory accident, was reborn as a 47-year-old outer deacon of the Beast Control Sect, and his cultivation has been stagnant in the "pure karma position" for many years. Relying on the theories of "conditioned reflex" and "operational restriction" in his previous life, he innovated the crude beast control techniques, tamed the ferocious beasts with the methods of "positive guidance" and "behavior shaping", and cultivated "Tao companion beasts" with high intelligence and loyalty, which shocked the sect. In the process of practicing, he got acquainted with "Yun Qizi", a senior sister who adheres to ancient methods, and "Youquan", a deceased person who rebelled from the underworld, and was involved in the conflict between "innovation and conservatism" in the way of controlling beasts. As his cultivation level rose to the "position of understanding", Zhou Liangyi discovered that there were man-made shackles on the reincarnation system in this world, and his way of controlling beasts was unintentionally loosening the shackles, offending the judge of the underworld who was in charge of the "order of reincarnation". At the same time, "time travelers" who lost the meaning of their existence because he changed the history of beast control began to emerge from the time gap, vowing to obliterate his existence. Zhou Liangyi relied on the "Taiyi Golden Light Divine Refining Method" to stabilize his mind, used the "Hunyuan Yiqi Diagram" to deduce all methods, and dealt with all forces in the "Zhoutian Star Formation". In the end, he broke through to the "attainment stage" and communicated with all spirits with the "Thousand Mudra of Great Compassion", revealing that the essence of reincarnation is not an order but a flowing natural way, disintegrating the authority of the judge, transcending the obsession of time and space travelers, and reaching reconciliation with the deceased, establishing a new order based on "animity of all things, dependent origination and emptiness". He retired to the mountains and wilderness to continue exploring the ultimate secrets of beast control and enlightenment. ",
