The world did not end with fire or thunder.
It ended in a classroom.
Aizen sat quietly at his desk, half-listening to the dull hum of a lecture, his glasses catching the faint reflection of fluorescent lights. Around him were the usual faces, classmates trapped in routine, each moment dragging like an endless echo.
Then, without warning, the world folded.
No flash. No sound.
Just absence.
One moment they were there… the next, they weren't.
---
When Aizen opened his eyes, the classroom was gone.
In its place stood a vast, unfamiliar space—cold, silent, and far too large to be anything natural. The air itself felt different, like something was watching.
A voice broke the stillness.
Not heard, but known.
"All individuals have been successfully transported."
"Initialization complete."
Around him, students began to panic, their voices rising into chaos. But the voice continued, indifferent.
"Each subject has been granted a unique ability."
"Manacles system unlocked."
Aizen adjusted his glasses, his expression unreadable.
"A new world…?" he murmured.
---
Moments later, groups began to form.
Instinct.
Survival.
Familiar faces clung to one another as if that alone could restore order. Aizen watched as his friend Michael moved toward another cluster, joining alongside someone else they both knew.
A brief hesitation.
Then Michael turned away.
Aizen was left standing alone.
"…Well," he exhaled softly, a faint smile that didn't quite reach his eyes, "I'm alone again."
---
The voice returned.
This time, it spoke to him.
"Ability『Taste』unlocked."
"Allows the user to steal the abilities of those they consume."
Aizen's eyes sharpened slightly.
"Ability『Separated』unlocked."
"Allows the user to store and retain information from those they kill."
Silence followed.
Heavy.
Meaningful.
Then—
Aizen smiled.
"…Let's begin."
---
He moved without hesitation, stepping into the unknown.
Not long after, he encountered them.
A swarm.
Dozens—no, hundreds—of slimes, their gelatinous bodies shifting and colliding like a living tide. Weak individually, perhaps… but overwhelming in number.
Aizen didn't retreat.
He stepped forward.
---
The battle was messy.
Unrefined.
But effective.
Each strike grew sharper, each movement more deliberate. Slimes burst under pressure, dissolving into fragments as Aizen cut through them one after another.
Time blurred.
Effort turned into instinct.
And instinct… into power.
---
"Skill『Bouncing Inducement』acquired."
"Allows the user to induce a bouncing effect on any object they touch."
Aizen paused, breathing lightly as the last slime collapsed.
A slow grin spread across his face.
"…Let's go," he muttered, excitement flickering in his voice. "My first stolen skill."
The system responded immediately.
"Battle Skill section unlocked."
"Battle Skills are abilities specialized for combat applications."
---
The empty space around him no longer felt silent.
It felt like a beginning.
And Aizen…
Was finally moving forward.