Forbidden Zone of the Thirteenth Avenue: From Castoff to Urban Warrior

On Thirteenth Avenue, acid rain eats away at the crumbling city. Beneath the wasteland lies Zero Bureau's gene factory, where the wails of clones mingle with the roar of machinery, forming a backdrop of despair.

Niannian is an experimental subject abandoned by Zero Bureau. Radiation from the abyss has eaten away at her left eye, leaving her half-blind but freakishly strong. The black fingernail around her neck is her only bond with her father, the “Primordial Monster.” Her father disappeared ten years ago, and she became a killing machine. Then, in the Paradise Society's cold storage, she encountered Xiaoqi, a nine-year-old armless experimental subject raised as “spare parts.”

Dragging a ruined mechanical arm, Xiaoqi was like a stray dog struggling in a gutter. Yet when Niannian was on the verge of death, he used a rusty dagger to hone her sharpest fangs. The two “defective products” abandoned by the world became each other's only salvation. Niannian stormed into underground boxing matches half-blind to get Xiaoqi a military-grade prosthetic, tore apart mechs with her bare hands, and drenched the Black Tiger Gang in blood. Xiaoqi awakened as a hacker with his new prosthetic, took bullets for Niannian in the sewers, sealed off her escape route for her in the gene factory, and went down with thirty heavily armed mechs while clutching a bomb.

Zero Bureau never stopped hunting them, the abyss tower's clouds of radiation grew thicker, and her father's clone wept blood inside a cultivation tank, calling out to her. Clutching the coordinate chip Xiaoqi had bought with his life, Niannian's left eye blazed crimson as she went berserk. She tore apart fifty white-armored mechs with her bare hands and fought her way up to the top floor of the abyss tower.

When the pure white headquarters is stained crimson, what lies behind the black doors: her father's ultimate secret, or the truth behind the destruction of the entire world?

“Lay a finger on my sister and I'll grind you to dust. Owe my dad a debt, and I'll make you pay in blood!” The half-blind tyrant's road to revenge begins with wiping out Zero Bureau!