[POV: 3rd Person]
[Scene: Uchiha Clan Grounds, Sasuke's Room]
[Track Change: Naruto 'Sasuke's Theme']
While everyone was talking while paying attention to Sasuke, Itachi walked up to Asriel and bowed.
"Lord Asriel." Itachi started. "I was told you were the one to awaken Sasuke's Magic, I was wondering if it would be possible to do the same for myself."
The room fell quiet and Asriel spoke up.
"Just call me Asriel, to answer your question, it is possible. However, as I told your father, awakening your magic is best done before extracting chakra, as having your SOUL trait awakened will alter your chakra signature.
This is essentially resetting your ability to control chakra to nearly zero, with only muscle memory left. Before you even begin to think about awakening your SOUL Trait, I would first ask if I could perform a [CHECK] on you to see if this is even viable for you. Is that something you will allow me to do?"
Itachi's face lit up, responding with,
"Yes Mr. Asriel!"
"Please, Itachi." Asriel said awkwardly. "I am only 12. Don't call me mister, I would rather you call me big brother."
Itachi was stunned, Minato and Mikoto laughed while Fugaku was quietly smiling softly. Asriel moved closer to perform a [CHECK]
[Itachi Uchiha
Age: 5 Years 4 Months 3 Days
LV 1
HP: 20/20
CHK: 2,653/2,653 MAG: 0/0
AT: 0 (6) EXP: 50
DF: 0 (0) NEXT: 50
WEAPON: Kunai and Shuriken [Holstered]
ARMOR: None
Ryo: 6,930
Description: Itachi Uchiha is the genius son of the Uchiha Clan Head, Fugaku. He was sent to the battlefield at 4 Years Old where he saw the gruesome deaths of many. He is already proficient in [Fire Release], even before knowing any jutsu and is currently training in [Fire Nature Chakra Transformation]. His Chakra reserve already surpasses new Academy Genin graduates. However due to starting his excessive training and overloading his Chakra Network his Spiritual Energy is much stronger than his currently declining Physical Energy. He is currently ill with an undiagnosed illness.]
[Track Change: Naruto Shippuden 'Yamagasumi']
Renjiro's eye twitched and spoke to the room in a heavy tone,
"Itachi, Lord Fugaku, Lady Mikoto, I have something to say. It's urgent."
"Please Renjiro, tell us, is something wrong with Itachi?" Mikoto said anxiously.
"Yes, there is something wrong. I will need a more in depth examination, but what I can tell you now is that due to Itachi's very early and intensive training his Spiritual and Physical energies are out of balance.
So I will ask you to answer honestly Itachi, your Chakra already surpasses normal newly graduated Genin, that along with your young age and small physique is not normal. My question is this, How often do you use nearly all of your Chakra?"
Itachi, visibly nervous due to Renjiro's tone, answered anxiously,
"Mostly every time I train, I usually train until I am out of Chakra. Whether it was [TreeClimbing] or [Fire Nature Chakra Transformation] training I would push myself to improve."
"Why did you feel the need to push yourself so hard?" Fugaku asked.
Itachi looked at his father, then at the ground, and muttered,
"I wanted your approval."
Fugaku was surprised, but Itachi spoke again,
"You are always busy with clan duties, whenever we see each other you are almost always too tired to let me show you my progress or help me train.
And the few times you are able to see my progress, you didn't give me praise or approval, just how to improve."
Mikoto started speaking in a raised voice,
"FUGAKU! I told you that you were being to cold to him! I know you are a big tsundere but children can't tell the difference!
Itachi, your father cares deeply about you and is very proud of you.
When you aren't around he brags about your progress and how great of a son you are to not only me, but to the Elders, and even the Police Force Captains!"
Fugaku, as soon as he heard Mikoto yell his name, was already on his knees. Renjiro and Minato now saw who wore the pants in their relationship. Renjiro spoke up,
"You all continue, I am going to examine Itachi. Itachi, please continue speaking with your family."
[Track Change: Undertale 'Dating Tense!']
Itachi nodded and Renjiro got to work, using [Yang Release] to scan Itachi's body. Renjiro was really loving [Yang Release] at this point, because it was a manifestation of Physical energy he was able to use it to perform tests that would have required hours of lab work otherwise.
First Renjiro checked Itachi's heartbeat, which was somewhat fast, but Renjiro just attributed this to anxiety from speaking his mind to his father, and his mother's yelling.
He noted it anyways and continued, this time he checked Itachi's blood pressure, since he didn't have a cuff to restrict blood flow he would squeeze Itachi's arm with his hand.
"Itachi, I need to measure your blood pressure, please relax." Renjiro said softly.
Itachi nodded and Renjiro used his now large furry right hand to grip the five year-old's right arm, restricting his blood flow. Then using [Chakra Enhancement] on his right ear, he placed his ear against Itachi's arm. Mentally, he asked Asriel for help, he needed him to tap themselves when he starts hearing something, and again when he doesn't. While he does that Renjiro will use [Yang Release] to measure the pressure while he slowly relaxes his hand.
'Begin' he said internally. Slowly releasing his tight grip on Itachi's arm, who was starting to feel pins and needles. Suddenly,
*Tap*
...
*Tap*
'End' he told Asriel.
Renjiro stood up and mumbled, "138 over 83, possible Hypertension suspected.
Itachi, have you been having occasional dizziness, nausea, or fatigue?"
"Only when I am low on Chakra, otherwise I don't think so."
"Hmm, give me a moment. Tell me if you feel stiff."
Renjiro circled behind Itachi and pulled his arm to the side and back.
"Do you feel any stiffness in your bicep or shoulder blades?"
"Yes, I was training my [Shurikenjutsu] this week."
"Alright, a few more small tests. Asriel, prep the [Green Magic] please."
Renjiro moved back to Itachi's arm and using a claw scratched open the skin to draw a small amount of blood, which he put into a glass. Asriel healed the wound, which had only been open for three seconds before it was closed. Renjiro then used [Yang Release] to determine Itachi's blood count, by separating the platelets, white blood cells, neutrophils, and monocytes.
Observing a substantial decrease in platelet count, Renjiro went back to observing with [Yang Release], but this time looking much more closely, when he saw it, clotting, clotting everywhere. It was most obvious near and around the hands, but also near his organs. Suddenly, Renjiro thought of something rare, something dangerous, quickly he turned to ask Itachi.
"Itachi when you train in [Fire Nature Chakra Transformation] how often do you get burns, and how severe are they?"
Itachi, slightly confused answered,
"At the beginning? Most of the time. Now? Less frequently but more severe. But I always get it healed quickly. Why do you ask?"
"Did you ever have a severe third degree burn, like one on your whole hand?"
"Yeah, a couple times. But that's normal with [Fire Release]"
[Track Change: Naruto Shippuden 'Samidare']
"I think I may have come to a conclusion, can I have everyone's attention?"
(A/N: At this point I have realized that so far the story is very centered on Renjiro; more than Asriel at least. This will continue for a few more chapters but afterwards it will start to even out. Most of the reason for this is due to Renjiro's foreknowledge [ From being the mediator for Ian and Liam's debates on Naruto for 3 years ] and his medical knowledge.
The other reason is Renjiro's personality. In my personal opinion Asriel is more 'Human' than Renjiro in terms of Emotional Intelligence. [ Not to say Renjiro is dense, but he really only had two friends. Beyond that he only interacted for his job or out of necessity ] So when they start to interact beyond medicine and planning for the future, Asriel will likely be the more dominant personality.)