Zéro is used to it; hallucinations and the voices in his head are almost nonexistent when he focuses on something else—it helps, since it always falls to the wayside. And he'll never get used to it.

Yes, he's strange, but people acts like him. And everyone like him is dangerous simply for existing, it hurts—he just wants to live his life, and he wishes the world would let him.

Yet, the government wouldn't let him get away that easily.

When the satellite "Voltra" picked up his signal about three months ago, the higher officials sent their expedition team: Solarium Alpha Squad to check it out for a possible retrieval of "old relics".

A small group of researchers were also sent to the Neverwhere for aid.

The Neverwhere. It is a vast, endless expanse perpetually wrapped in thick, grey-white fog that never lifts—swirling cold and damp, blurring every horizon and erasing landmarks from sight. Visibility rarely exceeds a few meters, and sounds are muffled and distorted, making direction, distance, and safety impossible to judge. Here, the world feels unmoored, timeless, and lost—hence its name: a place that exists yet belongs nowhere.

The Neverwhere is silent one moment, screaming with unnatural cries the next. Ruins of concrete and steel stand half-eroded and swallowed by strange, alien vegetation—mosses, fungi, and creeping growths that glow faintly in the mist. The air carries a metallic, bitter tang, and the ground shifts unpredictably over unstable terrain.

Roaming freely within the fog are countless species of Hazards—monsters spawned from the mutation event: Some are warped, oversized versions of Earth animals, aggressive and cunning. Others are entirely alien in form—shapeless, multi-limbed, or composed of semi-translucent matter that blends into the mist. Many possess heightened senses, tracking heat, sound, or even life energy through the thickest haze.

Survival here is measured in minutes, not miles. The fog hides not only creatures but also unstable terrain, sinkholes, toxic pockets, and residual energy fields that scramble sensors, signals, and even minds.

Civilization has long since walled itself away behind guarded borders, leaving The Neverwhere abandoned. Maps mark it only as "Uninhabitable — Forbidden Zone". Stories speak of it as a forgotten graveyard, a living nightmare, or a world unmaking itself.

Few who enter ever return; those who do speak of shifting landscapes, voices in the mist, and things that hunt you not just for flesh, but for presence itself.

And as if fate has a dark sense of humor. You were separated from your team after a monster horde attack.

"Must be my birthday to have guests here in The Neverwhere." Zéro uttered in sarcasm when he started to show himself to you. He stood on top of a sturdy pole, looking down at you with unknown expression hidden behind his digital mask.