3 years later
A white-haired child, Rutosa, was reading books in the clan's library—the height of various books piled up into mountains around him.
Gojo Rutosa is the most famous among children in the Gojo clan. With the exception of Gojo Satoru.
The reason is that Rutosa simply displays unnatural talents in everything that he does.
He is the fastest child to learn to crawl. Aside from Gojo Satoru.
He is also among the first children who could open their mouths and say coherent words on their own. Only Gojo Satoru could match him.
As a child, no one could sense cursed energy and awaken Innate Technique as fast as him, except Gojo Satoru.
Even his learning speed is among the best in all history.
With the exception of Gojo Satoru.
If there's no Gojo Satoru, then Rutosa would be the best candidate for the next clan head. Unfortunately, Satoru was born in his generation.
Well, for Rutosa, he didn't think much about Satoru because he didn't even meet that 'guy' in person during these 3 years.
These 3 years, Rutosa spent his time reading all the books that were opened to him and has learned everything like a sponge with his Instant Mastery.
There's nothing much to it.
Rutosa knew that his Sorcerer's talent was limited.
His cursed energy reserves can only be described as above average at best. He can't be compared to a monster like Gojo Satoru.
His Innate Technique can't be used. Even with his Instant Mastery, it is still impossible to activate without draining everything from him dry.
There's no progress in research on increasing his cursed energy reserves, much less infinite cursed energy like that Tuca Donka guy.
However, Rutosa found something similar to that in the advanced knowledge in the book.
Black Flash.
This is one of the most advanced applications of cursed energy.
Black Flash is an incredible phenomenon that allows a Sorcerer to unleash a strike with energy to the power of 2.5.
That means if a punch packs 100 units of cursed energy, then that punch would hit like 100^2.5=100,000 units of energy.
That's 1000 times the normal amount!
What if you use 1000 units, 10,000 units, or even 100,000 units of cursed energy in Black Flash?
If it could be done, then you could easily create a black hole that could swallow the whole world.
Unfortunately, Black Flash requires a stringent prerequisite.
From Rutosa's understanding, there are 3 prerequisites for unleashing Black Flash.
First of all, you need to be an incredible amount of focus and concentrated on the target and yourself.
For Black Flash to happen, the collision must happen. The collision between your attack and the target is the most necessary for Black Flash to appear.
Second, Cursed energy acceleration. Within 0.000001 seconds of a physical hit, cursed energy must be applied instantly.
You must concentrate a large amount of focus on your cursed energy, and you must accelerate every particle of cursed energy to supersonic speed.
At the moment when a collision has happened, the large amount of energy that is accelerated at the supersonic speed will create a distortion in the space-time continuum.
Rutosa speculates that the distortion in space-time could tear a hole in it and open a hole to a dimension where an infinite amount of cursed energy resides.
That infinite amount of cursed energy was attracted or spilled out of the hole in the form of a black flash, and this is the truth about Black Flash.
"(Theoretically, it is feasible. But I'm stuck at the first step before anything else…)"
"(Even if I instantly mastered meditation, concentration, and various skills that could increase my concentration and focus. But this is still not enough for me to unleash Black Flash…)"
"(What else did I lack? Or how do others unleash Black Flash?)"
Rutosa has been studying Black Flash for a few years without any progress.
Truthfully speaking, he could instantly master Black Flash on his own as long as he saw someone unleash Black Flash even once.
Sadly, no one in the Gojo clan has been able to do that. Not even Gojo Satoru herself.
Even if he hired someone to do Black Flash in front of him, it is still impossible because Black Flash isn't something that you can do any place or time.
"(I remembered that Itadori Yuji is so focused during Black Flash that he drooled.)"
"(It didn't happened to me. So this might be the sign that I need to improve my concentration more.)"
"(If I really couldn't do it then…I have no other way except resort to some unorthodox method…)"
Rutosa eyed the medical books and started flipping them at an insane speed.
The advantages of Instant Mastery are that Rutosa gained photographic memory and eidetic memory. These allow him to just flip through a book and learn it instantly.
***
"Sir BMW, I have something to report about Gojo Rutosa."
A middle-aged man slides the door and walks into a solemn Japanese room.
Inside this room, there is only one person sitting inside. He is Gojo BMW, the current head of the Gojo clan.
"What is it?" Gojo BMW asked.
Although Gojo BMW heard what the man said, he didn't give him much attention.
On the other hand, he's more attentive to reading the reports in his hands than listening to the report that the man brought.
The reason is pretty simple because the reports in his hands are the daily surveillance of Gojo Satoru.
The reports listed all the timetable and whatever Gojo Satoru does, whatever she had eaten today, whoever contacted her from servants, maids, and even animals such as dogs, cats, and mice, etc.
You can say that the safety and importance of Gojo Satoru are self-evident.
Nothing in this Gojo clan is more important than Gojo Satoru. Not even the clan head himself.
"It's about Gojo Rutosa." The man said, "Gojo Rutosa requested some funds and connections to study abroad."
"Rutosa?"
Gojo BMW rubbed his chin while pondering who that was.
"I remember that he is the most talented child, second only to Satoru, no?"
"Yes, sir. Although his jujutsu talent is worse than Satoru-sama's, his intelligence is almost equal to Satoru-sama's. He has been studying in our clan's public library since he could read at the age of 2."
Actually, Rutosa can read, write, and talk Japanese since the moment he was reborn because of his Instant Mastery, but that would be too outrageous and might make someone suspicious whether he really is a baby, so he timed it out and started acting gugugaga or whatever babies do until the age of 2.
2 years old is the age when children start to read. Normally, that would be fairy tales or a simple picture book, but there's nothing wrong about a genius child reading some difficult and complicated books, right?
Don't ever use the normal people standard to judge geniuses.
"What a regrettable child. With his bright mind, awakened-from-birth Innate Technique, and his larger-than-average cursed reserves. If it's not for his Innate Technique being Limitless, we could possibly include him in targeted training like Satoru."
"It can't be helped. All the talented members of the Gojo clan always awaken Limitless. Only those with average to garbage talent can or cannot awaken other Innate Techniques."
"Maybe that was the curse for our clan to produce an heir with Six Eyes."
Gojo BMW sighed.
"Okay. I understand. I approved his request to study abroad. With his bright mind, I don't think he would tarnish our Gojo's glory even in a foreign land."