Drained of her wolf bloodline for eighteen years to serve as a supplement for her cousin, and thrown into the S-class beast secret realm to await death, Su Ye awakens the ancient Wolf Queen heritage and leads ten thousand beasts back to the city for revenge! In the federal beast bloodline era, Gu Hongshan colludes with the Lu family and bribes regulators, illegally extracting bloodlines and developing prohibited drugs under the name of recuperation, weaving a dark blood-sucking web. Su Ye subdues the silver-moon giant wolf Cang Xuan, ascends to the throne of the secret realm master, infiltrates the city under an alias, joins hands with legal and civilian forces, and step by step grips the solid evidence of official-business collusion. From a 'human medicine guide' to a counter-attacking guardian of the secret realm, the whole process is packed with face-slapping wicked relatives and arrogant scions, secret realm beast taming, stealing evidence for a counter-kill, and high-density showdowns at banquets with dual-track thrills fully maxed out.