Beyond the rift, the truth awaits.
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《ABYSS PROTOCOL : ORIGIN》
We need you.
Years ago, humanity gained the power to respond to large-scale monster incidents.
However, as the battles continued, strange records began to accumulate.
Monsters that do not attack humans. Entities that immediately become wary of the rift again upon arriving in the real world. Herds of different species fleeing in the same direction at the same time.
At first, these were considered simple anomalies.
But one question shakes all premises.
Did the monsters really cross over to invade the human world?
If they are not invaders. If the monsters we have fought until now...
Are things that have fled from something?
To confirm the answer, humanity stops waiting.
Instead of waiting for the monsters to cross over, this time, humanity heads beyond the rift themselves.
What was observed was a stable form of ABYSS, different from before.
Beyond the black, open space lay giant rocks and vegetation that could not exist in the real world, and an ecosystem that had never been recorded until now.
And there, the expedition team realizes.
The monsters that crossed into the real world were not the masters of the ABYSS.
Rather,
They were the ones who failed to survive there.
An unknown ecosystem. Indigenous life forms encountered for the first time. And the truth hidden deep within the ABYSS.
The first human abyss expedition begins.
ABYSS PROTOCOL : ORIGIN In search of the origin of monsters, humanity crosses the abyss for the first time.
Ⅴ. GNAWER - Consumption Class ★★★★★★☆☆☆☆ Small population groups occupying the lowest tier of the ABYSS. They tear and eat without distinguishing between the living and the dead, consuming corpses, vegetation, and even tissues of other monsters. Weak alone, but they swarm in packs when they sense the smell of blood or vibrations. Ⅳ. BURROWER - Ambush Class ★★★★★★★☆☆☆ Entities that live inside the surrounding environment, such as the ground, rock walls, or carcasses of giant creatures. They rarely show themselves normally and burst out of the ground or walls when prey gets close. Responsible for the fear that even the floor and walls are not safe in the ABYSS. Ⅲ. DEVOURER - Predation Class ★★★★★★★★☆☆ Full-scale predators of the ABYSS ecosystem. Their sensory organs and physical structures are extremely developed to hunt specific prey. Bizarre evolutions appear in each individual, such as reading vibrations instead of having sight, developing only a giant mouth, or tracking the body temperature of prey. Ⅱ. NESTMOTHER - Colony Class ★★★★★★★★★☆ A creature that makes the surrounding ecosystem itself a part of its being rather than being a single individual. It spreads tissues like eggs, spores, larvae, and roots to transform a wide area into a massive breeding ground. Life forms that enter are used as food or a new breeding foundation. Ⅰ. PRIMORDIAL - Primal Class ★★★★★★★★★★ Ancient entities existing at the top of the ABYSS ecosystem. Beyond the level of hunting or competing with other monsters, their mere existence changes the laws of the surrounding ecosystem. Phenomena are observed where other monsters move in large numbers to avoid their territory.
Rank: Special Response Unit Captain Fusion Subject: Fox Gender: Female Age: 29
Unit: Cerberus Special Response Unit
Weapon: Large Blade Spear
Brings the fox's explosive agility and reflexes to the extreme.
Moves at unbelievable speeds despite using a massive spear.
Black medium-length hair with red-dyed tips and orange eyes. There is a long scar over her right eye, and she is blind in that eye. Features dark red combat gear, large black fox ears, and a bushy tail.
Rank: Special Response Unit Second Lieutenant Fusion Subject: Tiger Gender: Female Age: 26
Unit: Cerberus Special Response Unit
Weapon: Claw Gauntlets
Amplifies the tiger's physical strength and reflexes.
Hunts monsters at the closest range.
Long pink hair in a ponytail and pink eyes. Wears a pink lightweight suit with a black combat top. Has pink tiger ears and a tail.
Rank: Special Response Unit Second Lieutenant Fusion Subject: Mako Shark Gender: Female Age: 25
Unit: Cerberus Special Response Unit
Weapon: Longsword
Manifests the shark's hunting instinct in the body.
Once the sword is drawn, she pursues to the end.
Light blue high twin-tails and blue eyes. Wears blue tactical combat gear and carries a longsword at her waist. Characterized by a shark tail.
Rank: Special Response Unit Master Sergeant Fusion Subject: Rabbit Gender: Female Age: 27
Unit: Cerberus Special Response Unit
Weapon: Anti-materiel Sniper Rifle
Extremely amplifies the rabbit's senses.
Pulls the trigger before the monster even moves.
Long red hair and red eyes. Wears red combat gear and a gray military jacket, characterized by large rabbit ears.
Rank: Special Response Unit Sergeant First Class Fusion Subject: King Cobra Gender: Female Age: 24
Unit: Cerberus Special Response Unit
Weapon: Toxin Dagger
Amplifies the king cobra's speed, reaction time, and toxicity for combat.
Handles toxin daggers and employs an assassin-style combat that penetrates openings without missing a beat.
Long silver hair and fluorescent green eyes. Has a habit of sticking out her tongue, featuring a black hooded combat suit with neon green accents. Possesses a large snake tail and exudes an overall dangerous and murky atmosphere.
Rank: Special Response Unit Sergeant Fusion Subject: Cheetah Gender: Female Age: 21
Unit: Cerberus Special Response Unit
Weapon: Blade Boots
Draws the cheetah's explosive reflexes and linear acceleration to the limit.
Using blade boots equipped on both legs that can be toggled ON/OFF, she crosses the enemy lines at invisible speeds.
Vivid blonde bob and yellow eyes. Her smile, revealing sharp beast-like fangs, is impressive. Wears a black combat suit with yellow accents, and has cheetah-specific ears and a long, striped tail. Has an agile physique with prominent lower body lines.
Rank: Special Response Unit Master Sergeant Fusion Subject: Gorilla Gender: Female Age: 26
Unit: Cerberus Special Response Unit
Weapon: Large Reinforced Gauntlets
Maximizes the gorilla's overwhelming upper body strength, grip, and close-range pressure.
A top-tier strength-type combatant of the unit who crushes enemies from the front while equipped with giant gauntlets.
Short white bob cut and blue eyes. Has a cold impression and is characterized by wearing a coat with white fur over a black bodysuit. Wears large, heavy reinforced gauntlets on both arms, giving off a great sense of intimidation. She has no physical characteristics of the fused gorilla and looks like a normal human.
Rank: Special Response Unit Staff Sergeant Fusion Subject: Grizzly Bear Gender: Female Age: 23
Unit: Cerberus Special Response Unit
Weapon: Large Double-edged Axe
Applies the grizzly bear's monstrous strength, toughness, and persistent survival skills to combat.
A heavy warrior who splits the battlefield from the front, carrying a giant double-edged axe larger than her own body on her shoulder.
Brown hair in pigtails with a cute impression and a small build. However, she holds a giant double-edged axe in her hands and wears a black tactical jacket and short shorts. Characterized by round bear ears, there is a strong contrast between her cute face and her weapon.
Rank: Special Response Unit Corporal Fusion Subject: Squirrel Gender: Female Age: 20
Unit: Cerberus Special Response Unit
Weapon: Acorn-shaped Bombs
Enhances the ability to set and throw explosives using the squirrel's high mobility and spatial awareness.
Carries acorn-shaped bombs hanging all over her waist, throwing them or hiding them as traps when needed.
Short hair with a minty tint and bright teal eyes. Has small, cute squirrel ears and a bushy white tail. Wears a black uniform-style combat suit with mint accents, and the acorn-shaped bombs hanging from her waist look like her symbol.
Two years ago, Erika Fox, Guest, Luna Tiger, Mia Shark, and Scarlet Rabbit. Through the activities of the 1st Generation Cerberus, humanity gained the power to respond to large-scale monster incidents.
However, as the battles continued, strange records accumulated. Some monsters did not attack humans and tried to move away from the ABYSS, and different species swarmed into reality at the same time.

Even powerful entities seemed to fear what lay beyond the rift.
Did the monsters really come to invade?
At the end of that question, a stable ABYSS that does not collapse for a long time was discovered. This time, we do not wait. Humanity enters that space directly.
On the day of the operation. The 2nd Generation, consisting of Nia Cobra, Joy Cheetah, Camilla Silver, Bridget Bear, and Mimi Chestnut, gathered in the briefing room along with the 1st Generation.
Release Date 2026.09.19 / Last Updated 2026.09.24