"Say, aren't you going to go over and give it a try?"
Inside Jujutsu High, Gojo Satoru and Schwarzer stood cooling off under the eaves. In response to his question, Schwarzer had no intention of answering.
Yesterday's attack had left no lasting impact. With Gojo Satoru present, no one believed the Cursed Spirits would dare to return.
The original exchange event had, at Gojo Satoru's suggestion, turned into a baseball game. Of course, none of that was important.
What was important was that Kakashi had officially become a teacher at the school, instructing them on the refinement and use of 'Chakra'.
Perhaps because Jujutsu Sorcerers could naturally control Cursed Energy and were thus more sensitive to spiritual energy, they managed to refine Chakra in just half an hour.
Thus, they quickly moved on to the practical application phase, which was...
"Ugh! Whoa!"
"Oww... that hurts."
Fushiguro Megumi and Kugisaki slammed onto the ground with a thud, landing flat on their backs. Before them stood a large tree several meters tall.
"Hey~ You guys okay?"
"Tch."
The two who had fallen to the ground made sounds of annoyance.
Following their line of sight, one could see Itadori, perpendicular to the ground, his feet stuck to the tree trunk more than ten meters up.
This was very basic Chakra training: tree climbing and water walking.
The athletic Itadori was exceptionally talented in this regard; in less than half a day, he could already use Chakra freely.
Perhaps this was why he could land so many Black Flashes—Itadori's talent lay in his control over power.
In contrast, the others weren't so gifted. Falling from a tree was no pleasant experience.
Of course, they could also choose to train at the man-made lake on the other side, but the price was getting soaked from head to toe.
Schwarzer had no interest in this so-called training; after all, her learning method was completely different from a human's.
"[Denial] This unit does not require human training methods. Chakra has already been analyzed. There is no need to expend energy learning."
As if to prove her point, the moment she raised her hand, she refined a ball of Chakra and transformed it into a fireball right before Gojo Satoru's eyes, unleashing the Great Fireball Technique without any hand seals.
Thanks to his Six Eyes, Gojo Satoru understood what she had done, but he couldn't comprehend how.
He was also training in the Chakra system and naturally knew how difficult it was to achieve such a feat.
It could be said that Schwarzer had already mastered the power of Chakra even more proficiently than Kakashi, their instructor.
"What terrifying learning ability. I'm actually quite curious what your Cursed Technique is."
"[Answer] 'Canon of Truth and Falsehood'. It can analyze anything it sees. The speed of analysis depends on the complexity of the target."
"[Addendum] The fastest method of analysis is to 'be attacked'. Any attack I endure can be analyzed almost instantly."
Schwarzer 'unreservedly' told Gojo Satoru the Cursed Technique she had just made up on the spot.
She wasn't a real Cursed Spirit, so naturally, she didn't have a Cursed Technique. But since she had already established her identity in front of Gojo Satoru, she had to play the part.
In any case, he had no way of telling she was lying. The analytical ability of the Machine Ex Machina could be considered a kind of 'Innate Technique'—a power one is born with.
"What's the scope of its analysis?"
Just from the description, Gojo Satoru could feel how terrifying this Cursed Technique was. If it was really as he imagined...
"[Answer] Everything. Technological creations, combat skills, different Cursed Techniques—anything can be analyzed."
"A Cursed Technique like that exists? That's just absurd, isn't it?"
It was the worst-case scenario. Gojo Satoru imagined how one could possibly defeat such an existence.
The only solution was to eliminate her before she could fully mature.
But when Schwarzer appeared before him, she was already an existence he could no longer eliminate.
"[Explanation] This unit holds no malice towards humanity. The analysis of the 'heart' requires a large amount of data generated by humans."
Seemingly sensing Gojo Satoru's thoughts, Schwarzer spoke to reassure him, reinforcing her established persona.
'No malice now doesn't mean no malice later,' Gojo Satoru sighed silently to himself.
He knew all too well what humanity was like. If he truly let her analyze the so-called human heart, he feared she would quickly conclude that humanity needed to be destroyed.
Just the old geezers in the higher-ups of the Jujutsu world were enough to make him want to kill someone, to say nothing of the even more outrageous individuals among the general populace.
Ultron wanted to destroy humanity after just a few days on the internet. If Schwarzer were to deeply analyze the human heart, wouldn't she eventually turn evil too? They were both robots, after all.
"Let's hope so." Gojo Satoru didn't want things to come to that, but he didn't have any better options.
The only silver lining was that he had made a Binding Vow with her, preventing her from actively harming humans.
The price was that he had to teach her about the application of Cursed Energy...
"Since there's not much for you to learn about Chakra, how about I teach you some techniques for manipulating Cursed Energy?"
Gojo Satoru suddenly had an idea and gestured towards Schwarzer.
The terms of their Vow were: he would teach her how to use Cursed Energy, and she would not actively harm humans.
There was one point he had almost forgotten: one of the conditions of the Vow was that he had to teach her.
In other words, he had to fulfill the condition of 'teaching'.
Gojo Satoru was too inexperienced with using Binding Vows. It was arguably the first one he had ever made, and he realized he had left numerous loopholes.
It didn't clearly define the responsibilities of both parties or the extent to which the teaching had to be completed. Such vague terms would result in a very weak Binding Vow.
The way to remedy this now was to raise the stakes on his end. The power system of Jujutsu was relatively balanced; one could say it operated on the concept of 'exchange'.
That is to say, the more he taught, and the more she learned, the stronger the Vow would become. He didn't know exactly how strong it could get.
The more Schwarzer learned, the stronger she would become, and the greater a threat she would pose. However, because the Vow prevented her from actively attacking humans, her effective strength against humans would become weaker.
Therefore, the stronger she became, the weaker she became...
"[Proposal] I need to learn Reverse Cursed Technique."
Schwarzer didn't know what he was thinking, but since there was a new gain to be had, she certainly wouldn't pass it up.
Within all of Jujutsu High, the most valuable things to acquire were the Cursed Techniques of Gojo Satoru and the others, followed by the Reverse Cursed Technique.
She didn't think Gojo Satoru would agree if she directly asked to learn Unlimited Void, so there was only one answer left: Reverse Cursed Technique.
"You want to learn Reverse Cursed Technique, huh? No problem. As it happens, Naruto and the others are with Shoko."
"But for a... what use would you have for the Reverse Cursed Technique?" Gojo Satoru swallowed the words "Cursed Spirit."
Cursed Spirits are themselves composed of Cursed Energy, so they can repair their bodies using Cursed Energy directly. Humans, on the other hand, must learn the Reverse Cursed Technique to heal themselves with Cursed Energy that has been converted into positive life force.
This was precisely what Schwarzer was after: the ability to convert Cursed Energy into life force, a property unique to Cursed Energy.
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