

As the Monster Age arrived and special abilities awakened, what awaited humanity was the end of the world. At the brink of the apocalypse, Frank Channing was sent back in time to the second year of the Monster Age. There, he awakened the Infinite Devouring System, allowing him to gain growth points by hunting the monsters. Along with it came a mysterious serpent-shaped mark on his arm. It could transform him into a powerful serpentine creature capable of wielding the very forces of the monster—seemingly tied to the secrets of the Blood Moon. From the system, Frank learned that he carried the mission of saving the world.

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.

The ruthless Vampire Duke finally finds his missing light—only to frame her as a fake imposter and enemy spy. After subjecting her to endless cruelty, the truth strikes like dagger: she was his savior all along. Now, a tyrant begs for forgiveness.

18-year-old Lila, deemed worthless for her inability to shift, faces betrayal from her boyfriend and sister, followed by her own father's attempt to kill her. When she meets Victor, the Alpha feared as the 'brutal monster,' both a fated romance and her dormant powers begin to stir…