Medical jutsu and a Father's feeling

"Those wounds?" The doctor couldn't help but look at the slightly embarrassed Hasashi on the side.

Right now, sitting on a bed in the hospital was Sei, his body was full of marks, marks left behind by his father's use of the gentle fist. Althought he received no really serious wound, it was clear that he was relatively in pain if one were to look at his face.

"We were training and I went a little overboard." Hasashi said as he sighed. It was undoubtedly his fault but he simply didn't expect his son to have gotten that stronger in such a short time span, given that it has been a while since they spared.

"I understand but I recommend you to be more careful next time. Although chakra confers natural healing property and we can heal him, for a child to suffer like that isn't something I wish to witness." The medical ninjutsu specialist said as he looked at the Hyuga with a stern look.

Member of the strongest clan in the village or not, member of the main family branch or not, nobody wished to see an angry doctor as they for sure knew how to make you regret it. Even more for a ninja considering that frequently exposed themself to danger and subsequently got injured just as much.

"I understand." Thus Hasashi respectfully said.

"Now you little ninja, don't act too recklessly you hear me? You are young, rather than hurting yourself while training, go out and play with your friends." The doctor turned to Sei as he said.

"May I ask what you define a friend as?" Sei asked the doctor with a defiant smile.

"Friends are-" The doctor was going to explain but he was interrupted. "No, don't, just don't, he is messing with you" The father knowing his son, soon intervened before the doctor fell into Sei's trap.

"Hm?" The doctor was obviously confused but pressing closer attention to Sei's smile which was transforming into suppressed laughter, he understood.

"You little rascal...!"

"Okay sorry, I am sorry!" Sei of course apologized just after, he just couldn't help it.

After that Hasashi looked at the scene of the doctor bickering with his son with a smile on his face. Although the kid seemed difficult to approach at first, he knew that appearance was deceitful.

The kid although sometimes too serious was a genius in the truest terms whether it was in ninja art, philosophy, or social life. He still remembered how he first messed with the Hyuga head at their first meeting before basically becoming his favorite nephew.

Well, not that the Hyuga head was difficult to approach, that man was basically a child lover even though he hid it well.

...

Sei Pov*

"Now stay put and let me heal you properly." Said the doctor or Mr Takashi if you will as he went ahead and started healing me.

Started with my arms, His parm started glowing green as he put it on my arm, slowly healing it.

[An outside force is healing you. Your recovery speed has greatly increased]

I ignored the system notification and activated my Byakugan instead. I was curious to see, what was really happening that couldn't be saw with normal eyes.

Although the doctor was surprised, he didn't comment, it was probably not the first time that happened.

As the world became black and white, Sei saw it, the chakra within the doctor's system being expertly controlled before going through his hands, which then as a medium stimulated his own chakra and started healing him.

[You have witnessed the use of skill far superior to your own.]

[Chakra control has leveled up]

[Chakra control Lv: 19/100]

[You have understood the true essence of the 'Mystical Palm Technique']

[Would you learn it?][Yes/No]

Already Familiar with this since the same thing happened when I witnessed the gentle fist being used. I thought [Yes] since I couldn't click on it for obvious reasons. Don't want to go around and do that around people.

[Mystical Palm Technique Lv: 1/25]

"I see, so that's how you do it." I said as I kept the byakugan activated to closely follow what he was doing in detail in the hope of grinding some level while doing so.

"The byakugan huh, Lucky you. So how is it? interested in medical ninjutsu? Wanna learn?" The doctor asked still healing me.

"I have to admit I am quite interested, plus it doesn't seem too difficult." I said, well aware of how ridiculous I sound. The mystical palm technique is considered as one of the most difficult jutsu to master as a masterful chakra control is needed to use it.

Too little chakra and there wouldn't be any effect and too much would cause some serious damage. Also, the rhythm was just as important but since he had the system, he didn't really have that problem. Plus his chakra control was bound to increase as he practiced it.

"Hahahaha, not too difficult? kid, you have no idea." The doctor laughed at my words and probably found it funny.

"So Sei, have you something to say?" My father on the side looked at me with an expectant gaze. I could tell what he was thinking at the moment without even thinking about it.

Well, this circumstance should be familiar from his point of view.

"Yes, I think I can do it." I said after a moment of reflection.

"I thought that much." He nodded with his eyes closed.

"Do it? Do what?" The doctor was curious, he was there during the entire conversation but he seemed to not have understood the implication of our words.

"That jutsu you are using, mind if I copy it?" I asked with a smile as thought I didn't do it already.

"Copy it? How could it be that simple? Even an Uchiha with a Sharingan couldn't." He shook his head at my words.

"Then you are in for a surprise. Show him Sei." My father asked.

"Okay then." I said as I thought about using the skill.

Then knowledge filled my head, my body, and chakra as if automatized moved orderly and precisely, though I have to admit it was a long shot from how masterful the doctor was with it.

Slowly I controlled the chakra through my hand, slowly but surely it started glowing green which was a sign of the use of the mystical palm technique.

"W-wait, H-how? That shouldn't be possible." The doctor stopped what he was doing in shock as he looked at me and my glowing hand.

"Believe me, I understand how you are feeling." My father put a hand on his shoulder but the smile on his face couldn't be hidden.

"I remember when he was two, I tried to impress him by showing him the Byakugan, telling him how great it was and that he would soon be able to use it as well if he grew up. I was hoping to see stars in his eyes but do you know what happened?"

Yeah, I remember that, now that I think about it, I was a bit heartless, perhaps I should have acted impressed? But as I was thinking my father continued without waiting for an answer.

"He looked at me with a raised eyebrow, can you imagine a child doing that? Then he directly proceeded to imitate the hand sign I did and used his byakugan for the first time."

"I was shocked, but I knew he was a genius even before that point since he was already normal since his birth."

"Next, when he was three, we happened to saw two clan members spar using our signature taijutsu, and after they were done, he asked me: Would they be angry if I copied them? And when I said now, believing he would just be messing around as any kid would. He told me to spar with him and when I accepted, proceeded to show me that he really did do as he said."

considering geniuses like Minato and Itachi exist in this world, I thought I could get away with it just fine but I think I went a little overboard.