

Hank is transported to a world intruded by ferocious beasts, where men at 18 can become Beast Masters, while women awaken their bloodlines to gain beast abilities—these "beast-girls" are humanity's ultimate defense. Through contracts, men and women grow stronger together. Hank obtains a God-Tier Beast Master System, yet begins with the lowest-ranked talent, scorned and abandoned by his clan. Still, his partner Queen honors her vow to form a contract with him, and from that moment, Hank rewrites his destiny.

In 2287, humanity is extinct, and Earth belongs to vampires and werewolves locked in a century-old war. When vampire archivist Veyra discovers a preserved human skeleton and a forbidden biology textbook, she begins questioning everything her kind believes about the past. Meanwhile, werewolf scout leader Elon learns that his sacred symbols are actually relics of human civilization. Their investigations lead them to the Dead Zone, where they uncover a terrifying truth: humanity vanished in a single, unexplained moment. Hunted as heretics, Veyra and Elon must join forces with a mysterious AI to uncover the truth behind humanity's extinction before history repeats itself.

When Eldritch Prison fails and its monstrous inmates flood into the world, humanity loses control of the night in a matter of days. The creatures born of human fear and rage and grief tear through everything in their path. Spencer Gray loses his parents to Subject 004, Wrath, and the rage that consumes him in that moment is so absolute, so pure, that the prison itself takes notice. It selects him as warden, granting him the power to capture any creature by force and strip it of its abilities for his own use. He joins the official human organization hunting these monsters and begins his pursuit of Wrath, absorbing power with every creature he takes down, becoming something the monsters recognize and fear. The humans who fight alongside him start to wonder whether the warden the prison chose is entirely on their side. Spencer has one answer to that question: he is on nobody's side but his parents'.

Stripped of his bond beast, Beastmaster Caleb survives by bonding with an alien symbiote with endless hunger for evolution. As Caleb seeks revenge, this bickering pair grows stronger with every beast they devoured and becomes humanity's last hope against the apocalyptic symbiote invasion.