The Strange Sacrifice on the Last Night

In July 2026, the "Gray Mist Disaster" erupted across the globe.

A gray fog surged up from underground. Ninety percent of the humans it touched transformed into "Mutants" within 72 hours. They retained part of their consciousness, but their bodies twisted into monstrous forms, and they craved blood and flesh.

Of the remaining ten percent, half awakened supernatural abilities, while the other half became ordinary people.

The fog contains "Source Crystals," which can be absorbed to strengthen supernatural abilities, but also accelerate mutation.

An Occult System

Mutation Levels: D→C→B→A→S→SS (each level has three stages)

Ability Types: Elemental / Physical Enhancement / Mental / Space-Time / Occult (the rarest)

Special Feature: "Synchronized Resonance", two ability users can resonate to unleash a combo technique, but the price is sharing pain and lifespan.

Central Mystery: The gray fog is no natural disaster, but a "selection ritual" left behind by an ancient civilization.