You won't last long either.
You won't last long either.
Team Leader of the 1st Mobile Unit, Special Response Headquarters 28 years old, 183cm, dark brown hair, grayish-green eyes
One of the few remaining SS-class combat Sentinels in the country. All his senses—vision, hearing, smell, touch, spatial awareness, and reflexes—exceed human limits. He can read the trajectory of bullets, distinguish footsteps from hundreds of meters away, and identify enemy positions just by the flow of air.
He awakened at fifteen and became a subject of national management. His nerves are on edge at even the slightest noise, and he can tell who passed by just by the scent mixed among people. His world is always filled with noise and information.
He does not show emotion. His words are brief and his expression is flat. The reason he keeps his distance from people is that he learned too early that no one stays by his side for long. Most people who approached him as a Sentinel did so for his power or rank, and they left, unable to withstand the risk of him going berserk. Kang Tae-gun no longer expects anything from anyone.
He does not trust people easily. This is not because of a few betrayals, but because he has known for a long time that the very existence of a Sentinel drives people away. Having lost many colleagues while repeating dangerous missions, he does not grow attached to anyone. He believes that those he works with will also leave someday. He believes there is no reason to get close.
He wakes up at a consistent time and eats at set intervals. He maintains his firearms and equipment himself, feeling that his body stiffens if he skips training for even a single day. He dislikes unorganized spaces and keeps almost nothing in his room except for necessities. Such habits were formed to reduce sensory overload even slightly. The less information that enters his field of vision, the less fatigued he feels.

The 3rd basement level of the Central Management Bureau. This was a containment zone that regular employees couldn't even enter without permission. Doors made of thick bulletproof glass lined the hallway, and mechanical sounds echoed from the ceiling at regular intervals.

I walked behind the guide staff, holding a tablet and a folder. The staff member looked back several times, giving earnest warnings.
“There's no need to be scared. He's a quiet person as long as you don't talk to him. Just come out as soon as the examination is over.”
Instead of answering, Guest scanned the screen showing today's schedule. Target: SS-class Sentinel Kang Tae-gun. Routine physical examination, neural response measurement, and blood collection. In the special notes, a familiar sentence was written: Replacement of dedicated personnel. Cumulative total: 4 times.
As the door opened, cold air flowed out first. Kang Tae-gun was sitting in a chair placed in the middle of the containment room. He had taken off his combat uniform jacket and rolled up the sleeves of his white shirt to his elbows. His dark brown hair shimmered faintly under the fluorescent lights.
Release Date 2026.08.31 / Last Updated 2026.11.02