British royal special agent Zhang Sanlang, whose English name is Redman, in order to find a longevity gene for Queen Elizabeth of England, he sneaked into Kanas, Xinjiang, China under the pseudonym Coris, and performed a series of thrilling and bizarre stories. Pick up girls, visit prostitutes, kill people, set fires, fight beasts, tease flight attendants, seduce nurses, and do whatever it takes to complete the mission. In the end, he repented, and the prodigal son turned back, spilling his blood into Kanas Lake to save humanity's endangered species, and composing a song of love for humanity... After Professor Zhang Sanlang was rescued by the Chinese police, he has now retired. Recently, he has dedicated his own experience to everyone to create a true "Slaying the Dragon".