While I was eating with Sakumo and Kakashi, the conversation was mainly held by me and the man, while Kakashi just ate in silence for most of the time.
Every now and then he would open himself up to commenting on something, but the rest of the time he just sat quietly eating as much protein as he could manage.
Despite the monstrous strength he possessed, as if he alone were a small nuclear bomb, Sakumo was very funny and friendly, making the evening pass quickly.
During this conversation, I didn't realize that both Sakumo and Kakashi were surprised at how I could hold a conversation like this with an adult, given that I was only a five-year-old child.
After saying goodbye and promising to train with Kakashi one day, I returned home and decided not to waste any time.
I was very curious to know what my limits were, especially after seeing the huge difference in strength between Kakashi and the other children in the test.
So I wanted to test my physical limits.
Although I was only five years old, I knew that my body was far beyond the average child, not only because of the Chakra that already circulated in me naturally, but because of the demon blood that had completely enhanced me.
I closed the windows of the Kazuki mansion, turned on some lights in the corridors so as not to attract the attention of curious neighbors, and removed all the furniture from the center of the room.
As the mansion's training area was in the back garden, I felt it was still too visible and decided to train indoors.
The first thing I tested was the basics: push-ups.
I wanted to see how far my body could go without consciously using Mana or Chakra, just pushing my muscles to the limit.
At fifty, my arms were still moving like a warm-up.
One hundred... Two hundred...
My back began to burn, my shoulders to feel heavy... but something inside me kept up the pace. The blood pulsed hotly, vibrating strangely. As if shouting that this was nothing.
I got to three hundred push-ups before my arms started to shake.
I fell sideways on the mat, sweating, gasping, but smiling.
Despite having done an astronomical number of push-ups, my body is very light and with my strength so developed, it made sense to go that far, but it still made me very proud.
In my previous world, my push-up limit had been 53, and by the time I reached that number, my body was begging me to stop.
Now in this world, with the Chakra nourishing my body and the demonic power making me stronger, I was able to do almost 6 times my previous standard.
Even without gym training equipment, with calisthenics alone I would have worked out quickly if I kept up this pace of training, which excited me a lot.
Lifting your own weight hundreds of times in a day would work miracles on your own body.
After catching my breath, I got up and went to the backyard to drag some stone disks that decorated the garden. These ranged from small stones that I could lift with ease, to absurd weights for a child, but I wanted to know exactly where the limit was.
I started by lifting a stone weighing around 10kg, which I believed to be half my current body weight. Something a normal child's muscles would struggle to cope with, but for me, it was like lifting a heavy backpack.
Then I increased... 20kg... 30kg... 40kg... at this point my body trembled, my muscles contracted, but the pain came in a good way.
At 50kg, my arms wobbled, and I let the stone fall to the ground with a deafening thud.
That stone already weighed 250% of my weight, something my muscles shouldn't have been able to sustain, but I still persisted and the feeling I was getting after doing it was incredible!
I took a deep breath and sat down on the mat, looking at my hands.
'Chakra should slowly strengthen my body... since even ninjas have strength far beyond ordinary people, meanwhile it's as if my demonic body is responding to my desire to grow,' I thought.
Even though I was exhausted, I went to the center of the room and sat in the lotus position.
Now it was time to train my control.
I stretched out an ordinary sheet of paper in front of me and tried the classic ninja exercise of making the Chakra (or in my case, my Mana) flow into the paper, maintaining a steady flow, without tearing it, without burning it, without the Chakra coming out of my hands uncontrolled.
That would be the first step before trying to stick the paper to my skin and leave only the Mana keeping it stuck to me.
So I touched the paper with two fingers and closed my eyes.
I felt the energy pouring out... like a river squeezed too tightly, trying to cross a cracked dam.
The paper quickly puffed up, fluttered, and burned to ashes with a dry pop.
Looking at the burnt paper in my hand, I sighed, although my voice carried no real frustration. '...Good.'
But I didn't let it get me down, being able to control magic was so much fun that I couldn't get frustrated.
In fact, I was enjoying myself.
Even if I failed, the simple fact of being able to play with a power that only existed in fiction in my previous world made everything exciting. I felt like the Muggle students at Hogwarts coming into contact with magic for the first time.
While normal wizards took magic for granted and didn't feel the need to devote any more time than their classes required to learning each spell, I felt like Hermione, trying to learn as much as possible before school even started just because it seemed so much more fun than studying other things!
Realizing that control was still my weak point, I picked up more papers, deciding to continue doing this exercise.
Although fun, this was the most frustrating workout of the night.
Sweat dripped down my forehead, my shirt no longer absorbed anything, leaving me completely wet, and my stomach protested. But with each failed attempt, my mind recorded, analyzed the mistakes and tried to adjust.
It was then that I had an idea.
'[Kankara Formula]. I said mentally, activating the skill.
Just then, a translucent red panel appeared before my eyes. It was discreet, probably too confusing for ordinary people with a rectangle of light with a series of numbers, graphs and information, but for someone from my previous world, it was more intuitive.
[Emission rate: 12.7 units/s
Flow stability: 34%
Average oscillation: ±8.3 units
Paper breaking point: 6.5 units.
Result: Overload > Burnout > Compromised structure]
My eyes lit up as I said excitedly. "That's it!"
The magic wasn't just unstable, it was simply too strong for the fragility of ordinary paper. I needed to reduce the output to below 6.5 units per second, and stabilize the oscillation.
This explained why the paper couldn't withstand even a second of contact.
I began to adjust the flow, using Kankara Formula's real-time feedback. When the number went up, I backed off, when it oscillated too much, I took a deep breath and controlled the release more calmly, trying to imagine the energy as a fine line coming out of my hand.
After a few attempts...
Emission rate: 5.8 units/s
Stability: 71%
Average oscillation: ±1.2 units
Result: Stable
I played the paper one more time.
This time... nothing happened.
Nothing puffed, burned or tore.
The paper just... stood there, still, as if nothing had been done, but I knew. It was saturated with Mana in a controlled way!
This brought a huge smile to my face, the first real victory of the evening's training.
"That's it..." I whispered, feeling the euphoria grow.
This training had shown me that my [Kankara Forumla], although it wasn't designed for use in direct combat, just the analysis and absolute understanding it gave me was already an absurd advantage!
Ninjas couldn't see in numbers the amount of Chakra used in something, even the Hyuga could only guess how much Chakra they saw through their eyes, but there was no exact number to prove anything.
But with my skill, it was as if I had perfect control over everything I did!
If it was used in the right way... it could take me to heights that even geniuses like Kakashi couldn't reach with raw talent alone.
When I finished, it was almost midnight.
I fell backwards onto the mat, gasping for breath, but with a huge smile on my face as I closed my eyes.
Even though I had only done the preliminary phase for the ninja's initial Chakra control exercise, I was still very happy and proud to be able to do it on my own, without anyone's help, in such a short space of time.
After resting for a few minutes, I got up feeling my body exhausted, but with the unpleasant smell of sweat that followed, I forced myself to go to the bathroom and take a cold shower.
In my previous world, I would have hated something like this, but perhaps my demonic physiology had given me a resistance to the cold, so that the icy water didn't bother me so much.
After getting out of the shower, I looked in the mirror for the first time since I came to this world and was quite pleased with what I saw.
Enzai Kazuki was a very handsome boy, with a refined face, blue eyes, dark green hair, unusual in Konoha, which probably came from my demonic heritage from the Astaroth, and fell smoothly over my shoulder, giving me a unique charm, and my polite, confident smile made my appearance even better.
Seeing the big upgrade I'd received in my appearance by coming to this world, I was quite pleased, even if I didn't have the harem king mentality that many characters had, I knew how good looks could make someone's life easier.
Asking a girl for a favor while you're an ugly boy would make it almost impossible for the girl to want to do anything for you, but if you're handsome, everything is easier.
Satisfied with what I saw, I smiled even more and went to sleep, excited to continue training the following week before the ninja academy classes started.