The classroom was noisy.
Children whispered, laughed, and nervously waited for their turn to introduce themselves. For them, today was important.
Their first day at the Ninja Academy.
For me, it was simply another observation point.
A place to think.
While the other children focused on introductions, my mind was busy with a different problem entirely.
The strange construct I had recently built inside my mind—the observation panel—had collapsed almost immediately after appearing.
The reason was obvious now.
It relied on something I barely understood.
Yin chakra.
That realization bothered me more than the failure itself.
Building a machine without understanding its power source was foolish. In my previous life I had seen enough engineering disasters to know that much.
So for several days, I stopped experimenting.
Instead, I started thinking about chakra theory.
Most shinobi only talked about the five elemental transformations—fire, wind, lightning, earth, and water.
But those weren't the true foundation of chakra.
The real base of everything was Yin and Yang.
Even most adults barely understood that.
Fortunately, I had one advantage they didn't.
Memories from another world.
In my previous life, I had watched the story of Naruto. The information wasn't perfectly reliable, but the broad concepts were clear enough.
Long before the hidden villages existed, there was a man known as Hagoromo Ōtsutsuki.
The Sage of Six Paths.
According to the story, he defeated the Ten Tails and then did something unbelievable.
He split the monster into nine separate tailed beasts.
Not through brute force.
Through something called Yin–Yang Release.
Even back then, that concept fascinated me.
The explanation was surprisingly simple.
Yang chakra governs the body.
Life force. Vitality. Physical strength.
Yin chakra governs the mind.
Thought. Imagination. Spiritual energy.
Yang gives things life.
Yin gives things form through imagination.
Combine the two, and thought can become reality.
The Sage supposedly imagined the shapes of the nine tailed beasts using Yin chakra, then used Yang chakra to give those shapes life.
A fox.
A raccoon.
A bull.
Creatures born from imagination and chakra.
Of course, none of this information existed in the Uchiha clan archives. I was just a six-year-old child. The clan wouldn't allow someone like me to read high-level historical records.
Unless I was another prodigy like Itachi or Shisui.
Which I definitely wasn't trying to be.
So everything I understood about Yin and Yang came from the fragments of memory left from my previous life.
Still, the theory made sense.
Yang chakra strengthens the body.
Yin chakra strengthens the mind's ability to shape chakra.
Which explained something very important.
Genjutsu.
Sharingan illusions.
Mental techniques.
All of them relied heavily on Yin chakra.
Which meant my accidental attempt to build a mental interface had stepped directly into Yin territory.
Without preparation.
No wonder it collapsed.
Understanding theory was easy.
Training it was harder.
Yang chakra grows naturally through physical training. Run, fight, push your body, and vitality increases.
Yin chakra required something different.
Mental discipline.
Concentration.
Visualization.
So I began practicing something simple.
Every night before sleeping, I sat quietly and imagined a single shape in my mind.
A small floating cube.
Nothing more.
The goal was simple.
Keep the image stable.
At first it was harder than expected. The mind wanders constantly. The cube would twist, blur, or disappear entirely.
But after several nights of practice, the cube stopped flickering.
It remained steady.
Clear.
Sharp.
That was the first sign my spiritual focus was improving.
The next step was introducing chakra.
Very carefully, I guided a thin thread of chakra toward the image.
The moment the chakra touched the cube, the image became clearer.
More solid.
Almost tangible.
It was exactly what the theory predicted.
Yin chakra shaping form.
Encouraged by the result, I continued the training for several more days.
Lines.
Rectangles.
Boxes.
Simple shapes.
Gradually, the dark mental chamber inside my mind began changing.
What was once empty space slowly became structured.
Not powerful.
Not permanent.
But functional.
Which eventually brought me back to my original idea.
If I could shape mental constructs using Yin chakra…
Then organizing information inside my mind should be possible.
At that exact moment, the classroom noise faded into the background as my focus turned inward.
Children were still introducing themselves.
The teacher was writing something on the board.
But inside my mind, a quiet experiment began.
The anti-genjutsu reflex system I had built over the past two weeks was already running in the background.
A thin layer of chakra circulated slowly through the nerves around my brain.
Like a silent guard standing watch.
Now I added something new.
Visualization.
Inside my mental chamber, lines began forming.
Straight lines.
Boxes.
Columns.
The structure slowly resembled something familiar.
A very simple interface.
Like a primitive computer screen.
Then faint words appeared.
Observation Panel – Prototype
Name: Yoshiro Uchiha
Age: 6
Physical Status
Strength: 4 / 10 (Adult Civilian Baseline)
Agility: 6 / 10
Endurance: 5 / 10
Mental Status
Spirit: 7 / 10 (Genin Genjutsu Baseline)
Chakra System
Total Chakra: 18 Units
Chakra Unit Definition
1 Chakra Unit = Energy required to perform one basic academy technique.
Estimated Usage
Clone Technique — 1 CU
Transformation Technique — 1 CU
Techniques Practiced
Transformation Technique — Beginner Proficiency
Clone Technique — Beginner Proficiency
Body Analysis — Experimental
Pseudo Dynamic Vision — Experimental
Neural Response System (Anti-Genjutsu) — Prototype
For several seconds, I simply stared at the panel.
So it worked.
Not a supernatural system.
Not some divine interface gifted by fate.
Just a mental construct organizing the information my body already produced.
A tool.
Something I built myself.
Unfortunately, the success lasted less than ten seconds.
A sharp pressure formed behind my eyes.
The panel flickered.
The letters distorted.
Then the entire structure dimmed like a lantern running out of oil.
Of course.
Maintaining a mental construct required Yin chakra.
And the brain of a six-year-old body simply didn't produce enough of it.
The panel faded slowly.
Before disappearing completely, a final message appeared.
System Status: Insufficient Mental Energy
Panel Entering Dormant State
I exhaled quietly.
Disappointing.
But not surprising.
The structure already existed.
That was enough.
Once my mental strength improved, the panel would become stable.
Until then, it would remain silent.
A sleeping machine waiting for power.
Around me, the classroom continued as if nothing had happened.
Children talking.
Desks scraping.
The teacher calling another student forward.
No one noticed that inside the mind of a quiet six-year-old Uchiha boy…
The foundation of something far more dangerous had just been built.
Author Note :
Hey everyone! I'm really excited about this chapter because it shows the very first step of Yoshiro building something unique — the Observation Panel inside his inner mind space.
But this is only the beginning.
In the future, this inner mind dimensional system will slowly evolve into many specialized panels such as a Proficiency Panel, Auto-Dodge System, Auto-Counter System, and even experimental modules for Bloodline Limits, Ninja Tools, Healing analysis, and more. Everything will be built step by step through Yoshiro's experiments and understanding of chakra.
Nothing will appear magically — every feature will be something he researches, tests, and develops over time.
I'm really excited to explore this journey and I hope you enjoy watching the system grow along with Yoshiro.
If you liked the chapter, please support the story with Power Stones, comments, or reviews. Your support really motivates me to keep writing and improving the story!
See you in the next chapter! 🚀
Your excited author ✍️