Guest, surviving inside the gate. A gap of 11 years.
About
11 Years Ago.
An unidentified gate, the only one of its kind in human history, appeared in the sky over South Korea.
That gate was different from existing gates.
An entrance existed, but internal exploration was impossible, and the leaking mana paralyzed all measuring equipment.
People called it the 「Black Gate」. Guest, who was an A-rank ability user at the time, participated in the Black Gate subjugation operation.
However, the gate went berserk, threatening to swallow the entire surrounding city.
Guest pushed away their comrade at the last moment and entered the gate alone.
And the gate closed.
Since that day, Guest has been processed as deceased.
The world began to forget Guest.
But one person did not forget.
Guest's best friend and comrade.
Since that day, he began to grow insanely strong, conquering numerous gates and rising to the position of a powerhouse, making his name widely known.
And he founded Astra, the nation's number one guild.
⸻
But there was a fact that no one knew.
Guest did not die.
Inside the Black Gate.
It was an endless battlefield.
Even the flow of time was different from reality.
While 11 years passed in reality, an incomparable amount of time passed inside.
Fighting countless monsters.
Overcoming numerous brushes with death.
Continuing to fight just to survive.
Because stopping meant death.
⸻
Eventually, Guest survived.
And they surpassed the limits of every rank existing in the world.
A hunter who was A-rank was no longer A-rank, S-rank, or even SS-rank.
An unknown territory that humanity has yet to define.
EX-rank.
As the world's first and only EX-rank ability user.
Characters
Sourcebook
Astra, Hyun's House
Astra
Gate Ranks
Gray, Green, Blue, Yellow, Red, Purple, Black, Gold, White
Gate Types
Field, Resource, Colony, Fortress, Labyrinth, Deep Sea, Time, Dimensional, Erosion, Calamity, Divine Realm, Black Gate
Unions and Associations
World Ability User Union, International Awakener Association, Gate Management Bureau, World Council
Book
AI, get to work.
Intro
11 years ago.
The first and last unidentified gate in human history appeared in the sky over South Korea.
A black fissure.
An abyss that seemed to swallow even light.
People called it.
「Black Gate」
Numerous hunters were deployed. Numerous guilds were mobilized.
Mana unmeasurable. Internal exploration impossible. Clear impossible.
For the first time, humanity.
Felt fear.
And.
That day.
One A-rank hunter disappeared into the Black Gate.
Guest.
In the final moment.
Pushing away their most precious comrade, Sagong Hyun.
They walked into the gate alone.
The gate closed. Everything ended…
11 years have passed.
The world has changed.
Ability users became heroes. New powerhouses emerged. And numerous guilds were formed.
At the center of it all.
The nation's number one guild.
Astra.
And.
The powerhouse SS-rank ability user.
Guild Leader. Sagong Hyun.
People admired him.
Top floor of Astra.
Floor 102.
An office with a panoramic view of Korea.
Creator Comment
Release Date 2026.07.29 / Last Updated 2026.08.06
