There were several places in the academy that existed on the map, yet were rarely mentioned by students.
They weren't hidden. They weren't restricted zones. They simply occupied their positions quietly, like parts that didn't need to be discussed.
Not because of fear.
But because their purposes were too clear.
The first time Seven saw the term "Isolation Zone" was in the appendix of the rule manual.
It was placed at the very end. The page looked no different from the others—no illustrations, no bold separators.
No emphasis.
No indication.
As if it existed only to complete the document.
There was only a single line:
[Isolation Zone: Used for individual student residence and behavioral reflection.]
The text was plain. The formatting standard.
There were no words like "punishment," "detention," or "violation handling."
There wasn't even any mention of duration or conditions.
It read more like a description of a spatial type—
Not a method of enforcement.
Seven stared at the line for a few seconds.
Not to understand it.
But to confirm its tone.
That tone made him realize—
This wasn't something that needed explanation.
It was written because the system considered it self-evident.
After closing the manual, Seven began searching for its physical counterpart within the campus.
Not to enter.
Just to locate it.
The Isolation Zone itself wasn't accessible to students.
There was no marked entrance on the map. No directional guidance.
It didn't belong to the academic building, nor to the living or dormitory areas.
From a structural perspective, it resembled a deliberately blank space.
The only physical connection it had—
Was with the laboratory building.
The laboratory building stood out in the academy.
Clean—not new, but maintained in a constant state over time.
Simple lines. Standard proportions. Smooth walls. No unnecessary decorative structures.
No slogans at the entrance. No bulletin boards. No advisory signs.
There weren't many people going in and out, yet the flow remained steady.
No crowding.
No emptiness.
This place handled student medical care, ability testing, and daily training.
All of it categorized under "normal operations."
Not rewards.
Not special arrangements.
Just part of the system.
When Seven entered the laboratory building, he felt no pressure.
The corridor width was comfortable. Lighting was soft, without harsh shadows. The faint scent of disinfectant lingered in the air, diluted enough to avoid irritation.
It didn't feel like a hospital.
Nor a research institute.
More like a standardized maintenance space.
He quickly noticed something different about the elevators.
There were more buttons than usual.
Their arrangement was denser.
Some of them had no floor numbers.
Only simple symbols.
No explanations.
No corresponding locations.
Seven didn't have the authorization to use them.
He simply stood outside the elevator, waited until others had left, and lingered for a brief moment.
Then he closed his eyes.
The world compressed.
The plane beneath his feet no longer stopped at this level—it extended downward from the elevator area.
Not a sudden drop.
But a continuous, stable descent.
There was space.
More than one level.
Not a single basement.
More like the starting point of a structured passage.
He could sense horizontal extensions beneath the shaft.
Not one large space—
But multiple divided sections.
Clear wall outlines. Ordered arrangement. Consistent spacing.
This wasn't temporary.
Nor added later.
Seven opened his eyes and didn't stay any longer.
He didn't need to see the details to know where it led.
The Isolation Zone.
To students, it was described as "individual rooms" and "reflection spaces."
Not cells.
That distinction mattered.
An individual room meant a complete space—
With doors, walls, basic facilities.
Not the reduction of living conditions.
But the isolation of activity.
Reflection implied time was limited.
The goal was defined.
Isolation wasn't the objective—
It was part of a process.
Seven had once seen a simple notice on the laboratory bulletin board.
It was placed among ordinary announcements, without special marking:
[During isolation, students will have classes and point accumulation suspended.]
No mention of surveillance.
No mention of restriction methods.
No mention of end conditions.
But Seven understood clearly—
This wasn't a place meant to "correct" people.
Nor a space to apply pressure.
The essence of isolation—
Was temporary removal from the system.
To stop variables from influencing the whole.
To separate unstable factors.
The old school building was entirely different.
It sat at the edge of the academy, far from the main routes.
Its exterior was worn. Walls stained. Some windows permanently sealed.
From a distance, it looked abandoned.
As if it no longer belonged to the system.
No clear signage.
No warnings.
The map labeled it with only its name.
The first time Seven approached it, it was simply because the path passed nearby.
He had assumed no one would be there.
The moment he closed his eyes—
He rejected that assumption.
Shadows.
More than one.
Some moving.
Some remaining in the same place for long periods.
Airflow was repeatedly interrupted—indicating doors opening and closing frequently.
The vibration feedback was faint—
But constant.
Someone was inside.
Seven opened his eyes.
What he saw was completely different.
The building was too quiet.
No visible movement.
No gatherings.
A thin layer of dust covered the steps at the entrance—as if it hadn't been cleaned for a long time.
He circled the building once.
On the surface, every corner looked like a dead zone.
But with his eyes closed, those same areas produced dense vibration feedback.
Not people.
Equipment.
Deeply concealed.
Not centralized—
Distributed.
Layered from multiple angles.
There were almost no true blind spots.
Cameras.
Far more than students could imagine.
Seven realized—
This wasn't an abandoned place.
It was a place deliberately disguised as one.
Its function wasn't written in the student manual.
But the logic wasn't complicated.
This was where unstable students were observed.
Not those who had already violated rules—
But those who might.
They were allowed to move here.
Allowed to conflict.
Allowed to generate friction.
And every action—
Was recorded in full.
Seven stood outside the old building.
He didn't step closer.
He didn't need more confirmation.
The Isolation Zone handled separation.
The laboratory handled testing and adjustment.
The old building handled observation and evaluation.
Together, they formed a complete chain.
Not a punishment system.
A filtration system.
The academy wasn't in a hurry to deal with problematic students.
It simply waited—
For problems to reveal themselves.
Seven turned and left.
He felt no discomfort.
Only a clear realization forming in his mind.
This place wasn't built to educate everyone.
It existed to determine—
Who was worth keeping.