However, that's only true for modern Earth.
In the unique and chaotic ninja world, summoning the dead isn't considered such an extraordinary ability.
Not to mention, the forbidden technique of Edo Tensei, created by the Second Hokage, already breaks the boundaries of life and death. And there are abilities like the Spirit Transformation Technique and the Rinnegan's control over souls.
There is even the Gedo Art of Rinne Rebirth, which can bring the dead back to life.
These methods are way more impressive than the skills provided by the system, to the point where, if you look at them individually, the system's soul-calling skill actually seems a bit useless.
However, Uchiha Kai, who had already tried using the "all-nighter tonight" technique combined with the antidote, would never truly think that the system's skills are useless.
With the mindset of an excellent exploration-type player, always using bugs if they exist and finding them if they don't, Uchiha Kai eagerly began researching the new skill, trying to find a way to exploit any bugs in it that fit his situation.
After all, this was a strengthened gold-grade skill, and he had used a 300-pull guaranteed draw to get it. It would be a huge waste if it turned out to be just a useless skill.
Through his research, Uchiha Kai found an opportunity to exploit a bug.
At that moment, he was suddenly summoned by the Third Hokage, so he curiously headed to the Hokage Building.
A place he rarely visited before, but now, for Uchiha Kai, it had become a place he would go to every few days.
Besides the fact that Uchiha Kai would occasionally propose some out-of-the-blue ideas, many times, the Third Hokage asked him for advice about various matters, both inside and outside the village, whether it was part of a test or simply because he needed his input.
Since Uchiha Kai hadn't come up with any new ideas or plans recently, he thought that the Third Hokage was once again seeking his advice.
However, when they met, Uchiha Kai saw the Third Hokage with a troubled and frustrated expression, and there was even a hint of anxiety on his face.
This made Uchiha Kai curious. Could something big have happened in the ninja world to make the Third Hokage like this?
Could it be that the Third Great Ninja War was about to begin?
Out of curiosity, Uchiha Kai asked directly.
The Third Hokage hesitated for a moment, then sighed and finally told Uchiha Kai that Tsunade had developed hemophobia after playing a game.
The Third Hokage also admitted that Tsunade's fear of blood couldn't actually be blamed on the Genjutsu game; it was just a trigger.
But with the Third Great Ninja War possibly breaking out at any time, this was a ticking time bomb that could cause a huge conflict between the Uchiha clan and the Genjutsu game.
Once the casualties in Konoha during the Third Great Ninja War became too high and there was no way to get Tsunade, the Medical Sannin, to help, people would definitely blame Tsunade for being too fragile. But they would also vent their anger on the Uchiha clan and genjutsu.
This is an undeniable fact because the ninjas in the world are a group of people who can only be tamed after undergoing a major purge or witnessing something like the Nine Clan Annihilation from the feudal era.
However, this is something the Third Hokage would never do. If he did, he would be betraying his beliefs and the Will of Fire he had upheld for his entire life. At that point, he would become the person mentioned in conspiracy theories.
To be honest, Sarutobi Hiruzen was truly helpless when it came to hemophobia. He still couldn't understand how a disease like hemophobia even existed in the ninja world. He had asked others, but no one had any answers or solutions.
Yet Tsunade's problem was like the sword of Damocles, always threatening to destroy the fragile peace between Konoha and the Uchiha clan that had been so hard to establish.
So now, the Third Hokage was troubled. He decided to inform Uchiha Kai early, warning him to prepare the Uchiha clan.
He also held a faint hope—Uchiha Kai was so intelligent and possessed extraordinary wisdom, perhaps he would find a way to cure Tsunade's hemophobia.
After learning the situation, Uchiha Kai deliberately acted shocked as though he had just heard the news. However, inside, he was deep in thought.
Sure enough, the golden spirit and large amounts of emotional value that had come from the direction of Tanzaku Quarters were sent by Tsunade, and she really had hemophobia, which aligned with his worst fears.
Honestly, Uchiha Kai was a bit troubled. Even though Naruto Uzumaki, the main character in the original story, used his protagonist halo to almost lose his life before managing to cure Tsunade's hemophobia, how would he manage to cure her?
After a brief moment of thought, Uchiha Kai said to the Third Hokage, "Actually, what we're talking about is a psychological issue, a form of post-traumatic stress disorder. In fact, many people suffer from similar conditions."
"I won't go into details, but as for Tsunade-san's condition, I can only say that I'll try my best. I can't guarantee I'll cure her."
Sarutobi Hiruzen's eyes brightened upon hearing this. Although he didn't fully understand what post-traumatic stress disorder was, he understood that there was hope for Tsunade's cure.
At that moment, the Third Hokage said, "It's good that there's a possible way to treat her. That's already much better than being completely clueless. Kai-kun, please give it a try! Regardless of whether you can cure her or not, if you need any help from me, just ask."
"So, please do everything you can to help Tsunade out of her current predicament—this isn't a request from the Hokage, but from a teacher, so I'm asking, please!"
At the end, this old man spoke seriously to Uchiha Kai, and at least at this moment, he was using his identity not as Hokage, but as a teacher of the Legendary Sannin.
With this, what could Uchiha Kai possibly say?
Moreover, helping Tsunade with her blood phobia was also a key part of the future plans for the Uchiha clan, and especially for Uchiha Kai himself.
Right away, Uchiha Kai set off, thinking as he walked through Konoha.
However, Uchiha Kai didn't head directly to Tsunade; instead, he first sought out Orochimaru—he needed Orochimaru's help.
And the plan in his mind was actually to combine the recently obtained summoning skill, with the aim of exploiting a bug in the skill.
If it worked, Tsunade's blood phobia would no longer be an issue, and there could even be extra benefits.
So, not long after, Uchiha Kai met with Orochimaru at home.
To be precise, he met him in the public library of the mental network, interrupting Orochimaru's learning process.
Orochimaru was a bit angry, but since it was Uchiha Kai, he could only suppress his frustration and ask, "Kai-kun, what's the matter?"
His attitude was clear—speak quickly and get to the point, he wanted to continue immersing himself in the ocean of knowledge.
Uchiha Kai understood Orochimaru's meaning and immediately got to the point: "Tsunade-san's blood phobia has flared up. Now, she can't even move when she sees blood and falls into an uncontrollable state of fear."
"The Third Hokage told me about this and, as a teacher, asked me to do everything I can to help Tsunade out of her situation."
"Orochimaru-san, as Tsunade's partner, I'm sure you don't want to see her completely turn into a useless person who can't even be a ninja or a doctor, right?"
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