In the years since the Apocalypse began, humanity learned that survival required more than courage.
It required understanding.
Understanding of strength.
Understanding of hierarchy.
Understanding of what stood against them.
Without classification—without structure—fear would have swallowed reason long ago.
In the first months after the Gates tore open the sky, chaos did not stem solely from invasion. It stemmed from uncertainty. No one knew what constituted a minor threat and what signaled an extinction-level event. Rumors inflated isolated incidents into doomsday prophecies. Panic rushed to fill the gaps where knowledge should have been.
Structure became humanity's second line of defense.
Among all the forces that emerged after the Gates appeared, superhumans were the easiest to categorize.
Not because they were simple—
but because they were still human.
They possessed restraint and growth. Doubt and ambition. Discipline, ego, compassion, and error. Their power, however extraordinary, remained anchored to mortal frames and biological limits.
They tired.
They bled.
They broke.
That made them measurable.
The Superhuman Association—formed during the chaotic months following the first invasions—established the original ranking framework. Later, its data was refined and expanded through intelligence gathered by the Heavenly Network, whose global surveillance and predictive analytics surpassed those of any single nation.
The guiding principle was simple:
Rank reflected baseline, repeatable capability—not peak output, not conditional activation, not hidden potential.
Only what could be demonstrated safely, reliably, and consistently counted.
Thus, the system was born.
E-Rank marked the lowest recognized tier of awakened individuals.
These were people whose abilities were limited in scope, modest in enhancement, or highly specialized in narrow functions. Some enhanced a single physical trait—sharper eyesight, stronger grip, minor kinetic projection. Others served support roles: low-efficiency healing, barrier reinforcement, localized detection.
They were rarely frontline combatants.
But they were not insignificant.
Wars were not won by power alone. Logistics, reconnaissance, medical support, infrastructure stabilization—E-Ranked individuals filled the spaces strength alone could not.
They were numerous.
They were necessary.
D-Ranked individuals exceeded conventional soldiers reliably.
A D-Rank could defeat low-tier monsters in single combat. Their reflexes surpassed elite athletes. Their endurance and durability outpaced trained military personnel by measurable margins.
Many formed the backbone of city defense units. They secured perimeters, held evacuation corridors, and fought in coordinated formations.
They were steady.
Dependable.
Disciplined.
Against true calamity, however—
they were not enough.
C-Ranked marked the first true threshold.
A C-Ranked superhuman could defeat multiple enemies alone. They could withstand coordinated monster packs and anchor a defensive line without immediate support.
They became field leaders within regional guilds—independent operators who survived encounters that would annihilate lower tiers.
When the public imagined "superheroes," they often imagined C-Ranked.
They did not realize how much higher the ladder climbed.
B-Ranked were rare.
A B-Ranked individual was not simply stronger—they were decisive assets.
They commanded squads.
They shattered enemy formations.
They altered tactical calculations the moment they entered the field.
Entire evacuation plans were sometimes built around a single B-Rank's operational range.
Properly deployed, a B-Ranked could determine the outcome of an urban battle.
Many served as pillars within large guilds, stabilizing entire regions through consistent response.
They were admired.
They were feared.
And for most organizations, they were the highest attainable ceiling.
A-Ranked superhumans were no longer soldiers.
They were weapons.
Unchecked, they could subjugate entire regions. They could dismantle large-scale monster hordes alone. They could confront powerful demonic units and survive.
When an A-Rank mobilized, nations took notice.
Governments tracked them carefully.
Diplomacy adjusted around them.
A single change in allegiance could destabilize regional balance.
S-Ranked stood apart entirely.
Their presence alone could determine the outcome of national—or even global—conflict.
They did not merely participate in war.
They defined it.
S-Ranked individuals were few enough that their names were known worldwide. Their movements were monitored. Their loyalties scrutinized. Strategic treaties were shaped around their availability.
When an S-Ranked entered a battlefield—
the world shifted.
And yet, even within this system, a dangerous truth lingered.
A rank above S existed.
SS-Rank.
They were few—countable on one hand. Living weapons of such scale that their deployment alone reshaped probability. Only individuals verified by the Heavenly Network were granted the designation.
At present, five were known to exist.
Rank measured what could be proven.
Not what might exist beneath restraint.
Not what might awaken under pressure.
Not what someone chose to hide.
In time, humanity would learn how costly that limitation could be.
If superhumans were humanity's defenders, monsters were its first great adversary.
And, in hindsight—
its most merciful.
Monsters were terrifying in form and overwhelming in number, but they were driven largely by instinct. They followed hierarchical patterns that remained consistent across species.
Their structure was predictable.
And predictability was mercy.
Within any large horde:
* Grunts formed the majority, ranging from weak E-Rank equivalents to stronger C-Rank variants
* Elites rose one tier above the grunts
* Generals, appearing only in large-scale hordes, stood two tiers above the lowest units
* Horde leaders dominated the structure
A kobold army, for instance, followed this pattern precisely:
* Soldiers ranged from D- to C-Rank
* Elites reached C- to low B-Rank
* Generals operated at B-Rank
* The king could reach A-Rank
Only high A-Ranked monsters—and rare S-Ranked aberrations—demonstrated true intelligence.
They could plan.
They could adapt.
They could retreat.
Their appearance was uncommon.
But when they emerged—
casualties escalated rapidly.
Even so, monsters had limits.
They overwhelmed through numbers. They devastated cities.
But they could be broken.
Their hierarchies could be dismantled.
Their leaders could be killed.
And when the leader fell—
the horde fractured.
That was the lesson humanity learned early.
And it survived because of it.
Then came the demons.
Demons were not predators.
They were counterparts.
Each demon possessed a complete mind—memory, strategy, ambition, and malice sharpened by purpose. They did not rely on instinct. They did not collapse when leadership fell.
Every demon that crossed the Gates was at least C-Rank.
There were no weak demons.
That single fact reshaped humanity's understanding of war.
Demonic armies followed rigid, intelligent hierarchies:
* Grunts (C-Rank) formed disciplined infantry
* Elites (B-Rank) wielded specialized abilities
* Commanders (low A-Rank) coordinated strategy
They did not rush blindly.
They maneuvered.
They adapted.
They exploited weakness.
Above them stood a more dangerous class:
High Demons.
Entities such as Dark Enchanters and Dark Berserkers belonged to this tier.
They were comparable to humanity's high A-Ranked superhumans—but far more dangerous in function.
Dark Enchanters manipulated battlefields—controlling beasts, warping terrain, and distorting causality itself.
Dark Berserkers acted as living siege engines—disciplined, relentless, and devastating in close combat.
High Demons were not merely powerful.
They were amplifiers.
Their presence strengthened lesser demons. Their command enforced absolute cohesion. Their survival prolonged conflict.
Victories against them were rare.
Survival came at cost.
Beyond High Demons—
whispers grew louder.
Ancient texts spoke of seventy-two rulers beneath the abyss. Once dismissed as myth, their existence was now increasingly confirmed by Heavenly Network intelligence.
The Seventy-Two Demon Lords.
Each comparable to an S-Ranked superhuman.
They did not merely command battlefields.
They ruled domains.
They shaped entire campaigns from afar.
Their power was not only destructive—
it was absolute within their sphere.
If even one fully crossed into Earth—
it would not be a regional crisis.
It would be a global emergency.
Thus far, none had descended completely.
Humanity did not mistake that restraint for mercy.
Restraint implied timing.
And above even the Demon Lords—
stood something worse.
The Seven Deadly Sins.
These entities existed beyond classification. Comparable to—or exceeding—what humanity defined as SS-Rank, they embodied concepts rather than individuals.
Pride.
Wrath.
Greed.
Envy.
Lust.
Gluttony.
Sloth.
They did not merely command.
They corrupted.
They amplified.
They consumed.
If Demon Lords were kings—
the Sins were principles.
Their arrival would not signal war.
It would signal collapse.
By the fourth year of the Apocalypse, humanity understood the truth it had once feared:
Monster hordes were crises.
Demon armies were wars.
High Demons were turning points.
Demon Lords were catastrophes.
The Seven Deadly Sins were extinction events.
Ranks brought clarity.
Structure.
Preparedness.
But never comfort.
Because above every known measure of strength—
stood something else entirely.
The Seven Great Gates.
Silent.
Eternal.
Unbroken.
Larger than any portal ever destroyed, they stood dormant across the world—monuments of impossible geometry that defied analysis.
They did not pulse.
They did not weaken.
They did not fade.
They waited.
If demons were already climbing toward humanity—
then whatever lay beyond those Seven Great Gates had not yet begun to descend.
And when it did—
rank would no longer measure power.
It would measure survival.