After Being Bitten by a Vampire, I Became the King of Monsters

Under the neon lights of the night, vampires bare their fangs, werewolves brandish their claws, and awakened ones hold their sequences. One evening, as a girl suddenly confesses to him, Chen Fan sees her head fly off, claws tearing through her neck. A man in a red suit, holding the girl's smiling head, injects Chen Fan with vampire blood. "Now you're a monster too. What will you do?" Fangs piercing his own kind, Chen Fan gives his answer. Monsters must die! What? I'm a monster too? Then I'll die as well! Wait, why is my heart still beating, and why can I still touch sunlight? What do you mean I can absorb any blood to become stronger? The awakened see me as a comrade, and monsters see me as one of their own? When the final holy war's horn sounds, both sides receive a secret order: "At all costs, kill the impostor on the pale throne." The youth on the throne stands up and removes his mask. "No more pretending. My name is Chen Fan, leader of the awakened, progenitor of vampires, king of monsters. Come at me all at once."