Dolls High: Chapter 1 'Black Reverberation' Episodes 1-70 Summary

― Boundary Erosion Ark ―

1. Prologue ― The World and the Academy

In this world, the relationship between humans and machines had already transcended that of mere tools and users.
Marionettes (puppets) called "Gesell" are weapons for combat, but at the same time, they are entities connected to their sync partners, the "Linkers," at a neural and sensory level.

Supporting that connection is "Synchronization Technology."

Synchronization is not merely piloting.
It is a technology that shares sensations, interferes with judgment, and sometimes overlaps the very minds of the participants.

And the military training institution, the "Academy," exists to educate and train for this.

Here, students learn tactics and synchronization control, conducting combat training while using equipped "Gestalt Limiters" to prevent excessive erosion—that is, ego collapse.

However, that very mechanism would later lead to the core of the world's anomalies.

―

2. The Beginning of the Story ― Alto and Noah

The story begins with the meeting between a boy named Alto and a Black Shell-type Gesell named "Noah."

Unlike standard units, the Black Shell-type was treated as a singularity even within the Academy.
In particular, even though Noah was isolated as an "abnormal individual," her synchronization aptitude with Alto was abnormally high.

What happened during their first connection was not a successful operation.
It was a sensory crosstalk.

The enemy's position could be "seen."
The world flowed in from inside Noah.
A field of vision that was not his own overlapped.

From that moment on, the relationship between Alto and Noah ceased to be merely that of a synchronizer and a puppet.

It was not "resonance," but
a connection that gradually lost its boundaries.

―

3. The Expansion of Anomalies ― Synchronization Turns into Erosion

As training and real combat continued, Alto's abilities improved at an abnormal speed.

However, it was not growth.

The more he connected with Noah,
・Sensations like future prediction
・The intrusion of others' vision
・The influx of memories that were not his own

began to occur.

Synchronization was supposed to be a "control technology that maintains distance."
But in the case of Alto and Noah, it evolved in a direction that erased that distance.

Eventually, it was no longer recognized as a combat technique, but
as a "phenomenon where the boundaries between existences melt away."

―

4. Anomalies Throughout the Academy ― Records Begin to Break

The anomalies were not limited to Alto alone.

Inexplicable phenomena gradually occurred within the Academy.

・Records disappear
・Names that should have existed go missing
・Parts of surveillance footage are blanked out
・The same phenomenon where "only the records are missing"

Furthermore, everyone begins to share the same sense of unease.

"Something is here."

But they cannot prove it.

Amidst this, "Unregistered Sync Reactions" are discovered.

They were not abnormal noise, but rather an inexplicable phenomenon that appeared as "sync waveforms so stable they were near-normal."

In other words, the anomaly was not a breakdown, but
"a sign that a different synchronization structure was intruding."

―

5. Approaching the Seventh Blocked Sector

As the investigation progressed, an area that should not have existed within the Academy emerged.

That is the "Seventh Blocked Sector."

But its existence was strange.

・Not on the map
・Not in the records
・Yet only "traces of being maintained" remain

Eventually, it is revealed that it is not just a blocked area, but
"a structure where space itself is being continuously maintained."

Alto, Mirei, Rio, and others begin to unofficially approach that area.

Meanwhile, Cain and the teaching staff also approach the same conclusion from missing records and past lockdown cases.

Everything was not a coincidence,
but had been converging there from the beginning.

―

6. The Reaching Point as of Episode 70 ― "Maintained Space"

Finally, Alto and the others reach the core of the Seventh Blocked Sector.

What was revealed there was a shocking fact.

It is not a destroyed ruin.
It is a "maintained structural space" that continues to function even now.

Power, structure, and sync reactions have not stopped.

In other words, it was not a "lockdown," but
"a device that keeps running to maintain something."

And at its center,
the source of the abnormal sync reactions exists.

―

7. The Current Core ― The Essence Not Yet Told

The possibility emerges that the events up to this point are neither mere accidents nor war.

Synchronization is not a technology,
but perhaps "a phenomenon that reorganizes the cognitive structure of the world itself."

The Academy is not an educational facility,
but perhaps a part of a device to maintain that synchronization structure.

And the relationship between Noah and Alto
is not mere compatibility or coincidence―

it is suggested that they might be a divided identity,
or even existences torn apart to maintain the boundary.

The Seventh Blocked Sector is the center of it,
and all synchronization anomalies and missing records are converging there.

―

■ The End Point (As of Episode 70)

Inside the Academy, daily life still continues.
Training is conducted, classes proceed, and students laugh.

But just behind that, the world is quietly beginning to be rewritten.

Synchronization is not a technology.
It is the collapse of boundaries and the reconstruction of perception.

And Alto and Noah,
as observation points standing at the center, have already begun to touch "another reality."

The Seventh Blocked Sector has not yet been opened.
But it already exists.