Chapter 1: Will of Fire? A Hollowed Truth
"I really can't escape being a teacher… can I?"
The thought came with a dry, almost amused sigh as Tobirama Shiba stood quietly beneath the pale sky of the Seireitei.
Memories two lifetimes' worth had finally settled.
In his previous life, he had walked a painfully ordinary path. A top student in art class. The go-to helper for classmates. They used to joke and call him Sensei even back then.
Then came university. A normal university. A teaching major chosen not out of passion but practicality. His family insisted. He complied.
And unsurprisingly… he became "Sensei" again.
Ironically, the moment he tried to escape that fate by passing a civil service exam instead of becoming a teacher, his life had ended.
And began again.
Now?
He was Tobirama Shiba.
Same given name. Different world. Different blood.
Different danger.
The air here was not peaceful.
It looked peaceful with white walls, orderly streets, and distant patrols of Gotei 13 shinigami moving like shadows but beneath it all lay something heavier.
Spiritual pressure.
Ancient.
Oppressive.
Unforgiving.
"This world…" Tobirama muttered inwardly, "…is insane."
Hollows that devoured souls.
Shinigami who erased them.
Nobles who played politics like war.
And somewhere above it all
Monsters wearing the faces of gods.
He stepped into the modest academy office assigned to him.
At a glance, it wasn't much different from a school office back on Earth.
Wooden desks. Paperwork. Ink.
But the asauchi resting casually beside the documents ruined that illusion instantly.
This wasn't a place of learning.
It was a place that trained weapons.
And he?
Was one of the instructors.
Worse
He wasn't just a teacher.
He was a shadow.
Raised within the hidden faction beneath the Onmitsukidō, Tobirama had been trained from childhood in silence, obedience, and elimination.
The kind of place where names didn't matter.
Only usefulness did.
Becoming an instructor at the Shin'ō Academy wasn't a promotion.
It was an assignment.
Observe.
Evaluate.
Report.
Especially
If any "irregular talents" appeared.
"Yeah… this definitely isn't a safe posting."
Tobirama exhaled slowly, fingers brushing the edge of the desk.
Just as he began organizing his thoughts
A voice echoed in his mind.
Cold.
Mechanical.
Unfamiliar.
[Teacher System Activated!]
A translucent blue panel unfolded before his eyes.
[Congratulations. You have successfully become a teacher.]
[Teaching students will grant rewards.]
[The more outstanding the student, the greater the reward.]
[You may accept exceptional students as disciples for personalized instruction.]
[As disciples grow stronger, the teacher will receive corresponding rewards.]
[Note: Discipleship must be mutually agreed upon. Forced contracts are invalid.]
Tobirama blinked once.
Then twice.
"…Of course I get stuck teaching again and now there's a system encouraging it."
Still
This?
This was something he could use.
He opened the interface.
Two tabs.
[Personal Panel]
[Master-Disciple System]
He selected the first.
[Name: Tobirama Shiba]
[Age: Appears 18]
[Reiryoku: 4,800]
[Zanjutsu: Intermediate]
[Hakuda: Basic]
[Hoho: Flash Step (Entry Level)]
[Kido: Bakudō #1, Hadō #4, Hadō #31]
[Special Trait: Shiba Clan Spiritual Affinity (Fire-Type Enhancement)]
[Evaluation: Above-average academy instructor. Barely noteworthy in the wider Seireitei. Survives—barely—in real combat.]
[Disciples: None]
"…Brutal," Tobirama muttered.
Accurate but brutal.
A bell echoed across the academy grounds.
Class time.
The Shin'ō Academy was short-staffed, which meant Tobirama wasn't just teaching.
He was also a homeroom instructor.
He picked up the roster as he walked.
Names passed his eyes quickly
Then paused.
Rukia.
Renji.
And
Gin.
Tobirama's steps slowed slightly.
Now that… was interesting.
Future pillars.
Future monsters.
Or future disasters.
Depending on how things played out.
A faint smile curved his lips.
"If the system rewards talent…"
"…then I just hit the jackpot."
The classroom doors slid open.
The design was familiar tiered seating rising toward the back, ensuring every student could see clearly.
But the atmosphere?
Different.
These weren't ordinary children.
They were souls training for war.
The chatter died instantly when he stepped in.
Curiosity.
Nervousness.
A bit of fear.
And
One voice that cut through all of it.
"Hey! You're our teacher? You don't look that old!"
A red-haired boy leaned back lazily in his seat, grinning.
Renji.
Bold. Loud. Unfiltered.
Tobirama smiled easily.
"I'll take that as a compliment."
A few students laughed.
Tension eased.
Good.
"My name is Tobirama Shiba. From today onward, I'll be responsible for your class."
"Let's try not to die before graduation."
Silence.
Then
Nervous laughter.
Introductions began.
Rukia spoke calmly.
Renji loudly.
Gin?
Smiling.
Always smiling.
Tobirama watched the system.
Waiting.
Nothing.
"…So it doesn't trigger that easily."
No shortcuts, then.
He'd have to earn it.
He clasped his hands behind his back.
"Before we begin…"
"Let me ask you something."
"Do you know why the Shinigami exist?"
The room stilled.
No one answered.
Finally
Rukia raised her hand.
"To maintain balance between souls... and Hollows."
"Correct."
Tobirama nodded.
"But that's only part of it."
His tone shifted.
Lower.
Heavier.
"Long before the current order… there was chaos."
"Souls devoured endlessly."
"No system. No protection."
"No future."
The students leaned forward.
Even Gin's eyes sharpened slightly.
"The Shinigami weren't just created to fight Hollows."
"They were created to protect continuity."
"To ensure that existence itself… didn't collapse."
He paused.
Let it sink in.
"The noble clans like the Shiba Clan played their role in shaping that system."
"Sacrifices were made."
"Lines were drawn."
"And a fragile peace was built."
Renji frowned.
"…So we're just… cleaners?"
Tobirama smiled faintly.
"No."
"You're guardians."
"Of a system built on sacrifice."
The room grew quiet.
He could feel it
That shift.
That weight.
"If that system collapses…"
"Everything collapses with it."
He straightened slightly.
Voice firm.
"That responsibility… is what you carry."
For a moment
No one spoke.
Then
"I want to get strong enough to protect that!"
Renji again.
Of course.
Others followed.
Excitement.
Determination.
Naivety.
Tobirama's gaze shifted slightly.
To Gin.
To Rukia.
Different reactions.
Different thoughts.
Good.
"Alright," he clapped once.
"Let's move on."
"What are the fundamental techniques every shinigami must master?"
"Zanjutsu! Hakuda! Hoho! Kido!"
This time, multiple voices answered.
"Good."
Tobirama nodded.
"And tomorrow…"
"We start with Kido fundamentals."
Groans.
Excitement.
Curiosity.
Time passed quickly.
Too quickly.
When the bell rang
Even Tobirama was slightly surprised.
"Class dismissed."
Students lingered.
Talking.
Laughing.
Planning.
Renji was already arguing.
Rukia correcting him.
Gin… watching everything.
As Tobirama stepped out
He felt it.
A presence behind him.
Soft.
Controlled.
Observant.
Gin.
And at that exact moment
[Lesson Complete.]
[Evaluating…]
[Evaluation: A]
[Outcome: Successfully engaged students. Increased comprehension and emotional investment.]
[Reward Distribution in Progress…]
Tobirama didn't turn around.
But a small smile appeared.
"Now this…"
"…this might actually be worth it."
(End of Chapter)
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