It has been twenty-two years since the sky cracked.
Scientists first called it an anomaly. Survivors now call it The Inversion.
On that day, dungeons burst out of the ground all over the world. They didn't just bring monsters. They brought a new kind of energy, a new kind of chaos, and the end of the old world.
Modern weapons stopped working near these towers. In the glowing "Blue Zones" around them, bullets, missiles, and everything failed. Guns jammed. Machines died. Humanity was left almost defenceless against the creatures pouring out.
Our only hope came from the monsters themselves.
Inside their bodies, scientists found glowing crystals. When refined, these crystals turned into a bright, dangerous liquid called crystal fluid.
When injected into a person, this fluid reacts with their soul. People called this the Liquid Glow. It turns human blood into living energy — raw power that can destroy monsters and shape the world.
The people who survive this process become Hunters.
With Hunters came a new kind of society. Now, your worth isn't measured by money, but by your rank.
Most awakened people — about eighty per cent — are stuck doing hard, dirty work. They live and work in the "Low Zones," carrying monster bodies, mining ore, and clearing the lower levels of dungeons. To the big Guilds, they are just tools to be used and replaced.
The strongest Hunters are called Tactical Assets. They live in shining towers called Spires, built around the safest and richest dungeons. They are the stars of the new age, with fans, sponsors, and private guards.
At the very top are the Ruby and Diamond ranks.
A Diamond-rank Hunter is the strongest there is. They don't just clear a dungeon — they change the map. Their energy burns so hot that the Liquid Glow inside them shines pure white, hot enough to melt steel in seconds.
The world is now divided into sectors. Each sector is controlled by an organisation called The Order, which holds more power than any government ever did.
The Order manages all the Guilds in its area. Across the globe, there are more than five hundred sectors, each crowded with Guilds and smaller Hunter teams fighting for territory, resources, and fame.
Deep inside every dungeon lies a Boss Room. If a Boss isn't killed before its Stagnation Date, the dungeon spills out into the open world. Entire cities have been wiped out this way.
All global power — electricity, heat, even medicine — now runs on Essence Stones taken from dungeons.
If the Hunters stop diving, the world goes dark.