Afterward, Uchiha Yoichi spoke to them extensively about Forbidden Techniques. Among the five, only Sasuke felt completely bewildered, but seeing Karin listening intently, he pretended to listen earnestly to Uchiha Yoichi's explanation.
Although he couldn't understand much, you couldn't blame Sasuke. He hadn't even fully learned the Ninja basics yet, while Karin was a year older and had already started learning Ninjutsu.
"Summoning Jutsu."
Then Uchiha Yoichi used a Ninjutsu. However, instead of summoning creatures, two Scrolls appeared before him.
"Itachi, didn't you want to learn Forbidden Techniques? Here's the Konoha Sealing Book; it contains Forbidden Techniques collected by the village over generations. The other scroll is my own compilation and includes Forbidden Techniques of the Uchiha, but most are mine. Take a look."
Uchiha Yoichi paused briefly before continuing, "But the scrolls only list names and effects. I've sealed the specific cultivation methods. If you want to train, I can unlock them for you, but if it's not suitable for you, it won't be possible to cultivate them."
"Father, may I also take a look?"
"What kind of question is that? Do you think I'd be partial?"
With a smile, Uchiha Yoichi said and spread out the scrolls towards Itachi. But Karin couldn't hold back and said, "Itachi Nii-san, I'll look at Father's scroll, and you look at Konoha's. Later we can switch."
Uchiha Itachi smiled at Karin, feeling rather touched, and picked up the Sealing Book to start reading. But the scroll was half-human tall, so Shiro and Kimimaro made some space and joined him in reading.
Flying Thunder God Jutsu, Eight Gates Jutsu, Reanimation Jutsu, Dead Demon Consuming Seal Jutsu...
One Forbidden Technique after another appeared before Uchiha Itachi, each accompanied by introductions, like how activating all Eight Gates leads to certain death, and how the Dead Demon Consuming Seal involves exchanging one's soul with a death god.
The techniques were either incredibly hard to cultivate or required sacrificing life, and Uchiha Itachi, upon seeing the effects alone, was unwilling to practice them. He had a clear understanding of his own capabilities and refrained from learning techniques not suited to him.
For instance, among Water Release and Earth Release, Uchiha Itachi had only learned Water Array Wall and Double Suicide Decapitation Jutsu so far.
Just as Uchiha Itachi finished looking, Karin, with a sullen expression, grumbled, "Father, why are your Forbidden Techniques so hard?"
"Haha, you little girl, do you want to train them? It's not just you; there are very few apt candidates in the entire Ninja World for my Forbidden Techniques. But once you train well in Armament Aura, you'll have great prospects."
Uchiha Yoichi laughed as he spoke. This made Itachi very curious, so he leaned over to Karin and started looking from the beginning of the Kinjutsu Scroll.
The first thing that appeared was Izanagi, a Forbidden Technique of the Uchiha Race that allows one to reverse death by sacrificing the light of a Sharingan eye...
Next came other Forbidden Techniques: Five Hearts Facing Heaven Technique, Spiritual Mind Master Technique, World-Ending Spear Technique, World-Ending: Unrivaled Strength, and Lightning Instant, among others...
This plethora of Forbidden Techniques dazzled Uchiha Itachi, especially since detailed cultivation methods were provided, unlike the Sealing Book.
"Father, why aren't the cultivation methods hidden for these..."
"No need to conceal them; these are personal, not from the village. And as you've seen, most cultivation methods are incredibly stringent. Itachi, you can memorize them if you're able to train, but don't attempt the S-Class Forbidden Techniques; they can be fatal."
Uchiha Yoichi explained that Genetic Primordial Energy is extremely difficult to cultivate; without several strong genes, this technique is harder to master than Sage Mode—practically impossible to begin.
However, Uchiha Itachi might possess the talent for it, and if he could train, he might just get started.
"Thank you, Father!"
When Uchiha Itachi said this, his heart was filled with sincerity, and his lingering suspicions vanished. He felt Uchiha Yoichi didn't hide anything, and as for the Mangekyo Sharingan, it was likely a misunderstanding by another father.
Konoha has become so harmonious now; peace fills the village, and people compete to become its citizens—as observed by Uchiha Itachi himself. Plus, Shisui has returned, and he frequently exchanges training insights with his familiar friend Shisui.
Shisui's reverence for his father is genuine and often conveyed that only the Fifth can bring peace and stability to the Ninja World.
The village has been built up painstakingly and should not face destruction. He loves this environment.
This sentiment crossed Uchiha Itachi's mind, along with thoughts of his siblings; he adores the village and believes maintaining the status quo is best!
"Father, is this Forbidden Technique really that strong?"
Sasuke asked, pointing at Lightning Instant; it was the only technique Uchiha Yoichi marked with three S's as a super Forbidden Technique, with numerous preconditions for cultivation.
"Of course. Would you like to see it?"
Uchiha Yoichi had just finished speaking when Karin enthusiastically hugged his neck, saying, "I want to see. Father, give us a demonstration."
"...Okay, but not in the village. A single punch might obliterate the entire Konoha Village. Let's head outside."
After speaking, Uchiha Yoichi had them hold hands, then used Flying Thunder God Jutsu to transport the five youngsters to the coast of the Land of Fire.
A bit farther is Turtle Island; if I exert some force toward the sea, at most some fish might die.
Uchiha Yoichi created a Clone and instructed them, "Stay beside the Clone; it will protect you. Otherwise, you won't even be able to stand."
The Clone then used a small Four Red Sun Array to securely enclose Sasuke, Karin, and the others.
Since reaching the Six Paths level, Uchiha Yoichi hadn't fought. Since the war, he hadn't made a move and hadn't battled anyone for ages, always dueling with Clones—he felt he might rust.
Lightning Annihilation Mode, second layer.
Boom!
Furious Chakra and Lightning Release Chakra sparked a near-catastrophic shockwave, fracturing the nearby ground.
Bang! Bang! Bang!
Three consecutive thunderous sounds echoed as spherical pits formed under Uchiha Yoichi's feet, each deeper than the last, with the final one creating a pit tens of meters deep due to overwhelming pressure.
Moreover, Lightning emanating from Uchiha Yoichi struck the ground, leaving charred marks.
The Clone cautioned, "Watch closely; the moment is fleeting..."
Swish!
A thunderbolt flashed, and Uchiha Yoichi's figure disappeared, followed by a booming roar from the seaside.
The mighty punch compressed, exposing the seabed even as the violent shock shattered the seabed into a colossal trench.
Twin tsunamis surged, standing dozens of meters tall. The terrifying impact swept everything along the coast into the air, except the Clone's Four Red Sun Array which remained intact, though the spot where Sasuke and Karin stood felt like a high platform.
The surrounding ground had been lifted several layers.
A remote explosion erupted on the distant sea, and the brilliance and shockwaves obliterated clouds from the sky, visible even at dusk.
Rising into the air, Uchiha Yoichi glanced around, confirming no small islands were present; the tsunamis would mellow after traveling tens of kilometers, posing no concern.
Once the commotion calmed, Uchiha Yoichi returned to the side of his children and students. Even Kimimaro, typically the most composed, stared blankly at the distant sight.
Then Uchiha Yoichi smiled and snapped his fingers, bringing everyone back to consciousness and telling them: "Alright, the show's over, relax and rest. Don't get too excited and stir up trouble; you can all reach my level by training hard in the future!"