"Hey, you've got pretty good talent, kid. Hold out your hand."
Upon hearing this, Hayato Ren immediately extended his right hand.
Tsunade then grasped Hayato Ren's right hand.
As an outstanding ninja who had completed countless difficult missions, Tsunade's hands were stained with much blood.
Yet her hands bore no calluses, and the warm, jade-like sensation transmitted from her wrist made Hayato Ren somewhat captivated, even without sharing Kira Yoshikage's peculiar preferences.
Soon enough, Tsunade released Hayato Ren's wrist.
"You actually possess chakra of all seven nature types. That's quite rare."
Clearly, Tsunade's earlier action was to confirm whether Hayato Ren possessed both Yin and Yang chakra attributes.
Seeing that Hayato Ren didn't respond, Tsunade continued.
"Medical Ninjutsu is quite similar to regular ninjutsu, except it utilizes Yang-nature chakra. Beyond that, understanding the human body is essential. Here, take this 'Common Knowledge of Human Anatomy' and read it first."
Looking at the "Common Knowledge of Human Anatomy" Tsunade handed him, Hayato Ren suddenly felt a sense of bewilderment.
This world actually had anatomy texts, but when he saw the author's name—Senju Tobirama—he understood.
After all, as the creator of most of Konoha's forbidden techniques, the Second Hokage Senju Tobirama was likely a mad scientist who enjoyed human experimentation, much like Orochimaru.
Otherwise, he wouldn't have been able to create forbidden techniques like the Reanimation Jutsu.
Due to his previous life's profession being somewhat related to medicine, Hayato Ren found it relatively easy to study this book.
In just one afternoon, he had almost completely mastered the entire book.
Upon learning this, Tsunade didn't show much surprise. Instead, she tossed several more medicine-related books to Hayato Ren, telling him to memorize them well.
Later, Hayato Ren had dinner at Tsunade's house before taking his leave. Of course, he was still the one cooking that night.
After all, expecting an old gambler and a hot-blooded idiot to cook was asking too much of them.
...
"Hayato! I learned a super amazing technique!"
Hayato Ren had been studying in his room when the voice from outside interrupted his learning.
When he stepped outside, he saw Kushina surrounded by several golden chains, waving them around continuously.
Charmander watched the dancing golden chains with curiosity, seemingly contemplating whether to touch them.
When Kushina saw Hayato Ren come out, she initially wanted to show off.
But then she seemed to discover something new, her eyes suddenly lighting up.
Kushina quickly dispelled her ninjutsu and rushed to Hayato Ren in a few quick steps, exclaiming in surprise.
"Hayato, have you been secretly eating something special? You look super handsome now."
"Not at all, haven't I always been like this? By the way, that ninjutsu you were using earlier was the A-rank Sealing Technique: Adamantine Chains, right?"
Hayato Ren quickly changed the subject, and Kushina didn't press further. Instead, she puffed out her chest, placed her hands on her hips, and replied with evident pride.
"Hmph, as expected of Hayato, you're quite knowledgeable. Yes, that was the famous Adamantine Chains. When mastered to higher levels, it can even be used to restrain Tailed Beasts. Grandma Mito praised me as a rare genius of the Uzumaki Clan for mastering such an advanced sealing technique so quickly."
If Kushina had a tail, it would definitely be wagging proudly up to the sky right now.
Hayato Ren understood perfectly well, patting Kushina's head while praising her.
"As expected of Kushina, you're amazing. I'll be counting on you to protect me from now on."(￣ヘ￣o) Don't worry, Hayato." With me here, absolutely no one will be able to hurt you. By the way, how's your Medical Ninjutsu training with Sister Tsunade going?"
"Still in the theoretical phase. Actual training will probably start in a few days."
"Oh, with your talent, Hayato, you should master it quickly. To celebrate the future Hokage mastering Adamantine Chains, how about we go eat barbecue today? Grandma Mito gave me a huge allowance as a reward."
Hayato Ren naturally wouldn't refuse Kushina's invitation.
So the two of them and their Pokémon headed toward the barbecue restaurant in the village center. Although Charmander was a Pokémon, it had quite high acceptance of human food and particularly loved spicy dishes—perhaps related to its love of breathing fire.
Over the next month, Hayato Ren and his companions completed several D-rank missions, and under Tsunade's guidance, he learned several Medical Ninjutsu techniques.
Hayato Ren seemed to have an innate talent for Medical Ninjutsu. Even Tsunade said she had never seen a medical ninja with such natural ability.
It appeared all of Hayato Ren's skill points were allocated to Medical Ninjutsu, making him a born medical ninja prodigy.
Under the glow of dusk, Hayato Ren carried a large, plump orange cat as he and his companions walked toward the Hokage Building.
Suddenly, Kushina, who was walking at the front, stopped and turned to complain to Tsunade.
"Tsunade-sensei, when will this kind of life ever end? Every day it's either finding cats or farming. This isn't the ninja life I wanted at all."
Hayato Ren and Mikoto nodded in agreement. Although these D-rank missions were simple to complete, they were extremely monotonous. Moreover, splitting the mission rewards four ways left them with pitifully little, making them completely unappealing.
However, at this moment, Mikoto secretly glanced at Hayato Ren's face without drawing attention.
For some reason, Mikoto felt that Hayato Ren had become incredibly attractive, making her unconsciously want to observe him.
But this made Mikoto feel an inexplicable sense of guilt toward Kushina in her heart, as if she were doing something wrong behind her friend's back.
Hearing this, Tsunade stroked her chin.
"You do have a point. Alright, tomorrow I'll take you on a higher-ranked mission. But friendly advice—you might not want to eat so much tomorrow."
When she said the latter part, a gleeful smile appeared on Tsunade's face.
However, Kushina and Mikoto, immersed in their joy, didn't notice the strange expression on Tsunade's face.