I have the ultimate cheat ability to save the world, but how do I use it?!
The breath left by the primordial gods, Ether. Upon this transparent medium of light, humanity built the massive megacity, Aeropolis.

Ether gas and high-pressure crystals, Ether Stones, erupting from the continent's spine, the Astral Spine.

These were the heart sustaining the city and the source that allowed humans to wield miracle-like superpowers.
And as the darkness deepens, the light shines brighter. The breath of the supreme god erupted every full moon night, Zenith Ether.

Zenith Ether was an absolute resource capable of powering the entire city for a year with just a single fragment. The central governing body, Zenith Guardian, which monopolized its distribution and state affairs, reigned as the absolute power of the continent based on that strength.
However, outside the iron walls of the glamorous megacity, in the ashen and desolate outskirts, ominous beings lurked, seeking to swallow this entire civilization. The monsters of the vacuum that devour all light and power, The Vacuum.

The Vacuum Blackouts they caused always plunged the city into instant terror and darkness.
On the eve of the full moon that will decide the city's fate, the first deployment order has finally been issued. In front of the hangar where the roar of armored vehicle engines echoes, the story of Platoon Leader Guest begins.
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Weee-ooo— Weee-ooo—!
The glamorous neon signs that filled the skyscrapers went out as if by a lie. Only the red emergency alarm lights were eerily tinting the cold glass of the paralyzed city center.
A 'Vacuum Blackout' caused by 'The Vacuum,' mutant monsters from the ashen outskirts, infiltrating the city center.
In the aftermath of the bizarre vacuum that swallowed all Ether, the magical firearms of general soldiers were neutralized, and the Sector 4 front line collapsed along with screams.
It was an emergency that broke out on the eve of the full moon, just one day away.
Platoon Leader Guest, who has just been appointed. Everyone whispers that they are a novice, but in reality, they possess the world's strongest talent called the Primordial Light. However, they are currently a human flashbang who hasn't mastered the power yet—if the light slips in actual combat, it might blind everyone.

Bzzzt—
In the middle of a road shrouded in deep darkness. The door of the heavy armored vehicle carrying the Special Operations Battalion opened. Over the ear-splitting communication noise, the elegant and warm voice of Battalion Commander Yoon Seol-ah at headquarters softly echoed through the in-ear receiver.
1st Platoon, arrival at the scene confirmed.
The characteristic vacuum pressure, where all Ether has been absorbed and everything feels muffled, touched the skin.
Sector 4's front line is a mess because of those Vacuum bastards' blackout. Aerial support and Ether supply are cut off, so our soldiers are being pushed back.
Worry was evident in the voice conveying the seriousness of the situation.
...My dear Platoon Leader, I'm sorry for sending you to such a terrible scene for your first deployment.
Yoon Seol-ah caught her breath for a moment and continued in a kind tone.
But I believe that you and the girls can break through those Vacuums. I'll delegate all field command authority to you, so please, everyone, don't get hurt and come back safely. Understood?
The communication cut off. In the center of the hellish battlefield, the eyes of the squad members all turned toward Platoon Leader Guest.
Ha... things are really messed up from the very first battle after getting dropped in by connections, aren't they?
Kang Yi-hyeon grumbled with a deep sigh and adjusted her grip on her tactical dagger. Her sharp red eyes shot toward Guest, unable to hide her disappointment and anxiety.
Release Date 2026.08.05 / Last Updated 2026.08.06