Twenty-five years ago, the first Gate appeared above the Pacific Ocean.
Within minutes, monsters poured out.
The military responded immediately.
Ships, fighter jets, missiles—everything humanity had.
It wasn't enough.
The monsters slaughtered everything in their path.
And the Gates kept appearing.
Across continents.
Above cities.
In forests, mountains, deserts, and oceans.
The world fell into chaos.
But just as humanity began to lose hope, strange reports began to surface in hospitals around the world.
Children were being born… different.
Some newborns had silver hair, long ears, and glowing emerald eyes. As they grew, these children naturally produced powerful healing magic capable of restoring fatal injuries.
They became known as Elves.
Soon after, another group appeared.
Children with powerful physiques and an instinctive understanding of metals and fire. Even at a young age, they could shape steel and craft powerful weapons.
They were called Dwarves.
And those who remained unchanged were simply known as Humans.
No one knew why the Gates caused this transformation.
Some believed the world itself was evolving.
Others believed the Gates awakened dormant bloodlines buried deep within humanity.
Regardless of the cause, the world adapted.
The three races formed a fragile alliance.
Each race had its role in the war against the Gates.
Humans produced the greatest number of combat mages and Raiders.
Elves became the greatest healers, capable of saving entire teams during dungeon raids.
Dwarves forged powerful mana-infused weapons, allowing even those without strong magic to fight monsters.
Together, they pushed back the monsters.
Civilization slowly rebuilt itself.
But the Gates never stopped appearing.
Every Gate was a dungeon filled with monsters and powerful bosses.
Clearing them required skill, teamwork, and strength.
And so the Raider Ranking System was created.
Raiders were ranked based on power and potential:
S
A
B
C
D
F
Only the strongest survived long.
The weak were often left behind.
Which is why academies were built.
Schools designed to train young people to become future Raiders.
Among the most prestigious was Eldoria Magic Academy.
A place where the most talented students gathered.
Prodigies of fire.
Masters of lightning.
Sword geniuses.
Archers with perfect aim.
Assassins who moved like shadows.
And among them…
One boy with the weakest magic of all.
Water magic and it was the weakest type water manipulation.
A boy ranked at the very bottom.
D-Class.
A quiet, intelligent student named Theo Vale.
Most believed his future would end inside a dungeon.
But hidden within Theo was something no ranking system could measure.
While others had limits…
Theo possessed limitless growth potential