1 year later.
There was an earthquake in the foreign land, not physically but metaphorically.
Rumor has it that there was a child from Japan who could match Einstein's genius had set foot in America's land.
This child swept all the PhDs that the university could offer in a short period of time that all the academic circles were shocked to the point that they fell out of their chair.
Gojo Rutosa, with his Instant Mastery, obtained all the knowledge that the university could offer and speedrun, earning all the PhD degrees as fast as possible.
His speed is so fast that it alarmed the US President. He was offered a job with a generous amount of welfare and pay, even though he was a child.
Of course, Rutosa rejected all the offers.
Instead, he used his knowledge, funds, and connections to found companies such as Pineapple, Microstiff, AMCD, etc.
He invented and patented a more advanced version of the mobile phone than Apple's, which earned him a lot of revenue.
Using that revenue, he produced a better replacement for chips and released it into the market. Earning him more revenue and collaboration with many companies.
Gojo Rutosa's various subsidiary companies used those funds to generate more profits and expand his influence worldwide.
Now, no one didn't know the name of Gojo Rutosa.
Unlike in the Gojo clan, Rutosa's fame wasn't suppressed by Gojo Satoru, so the name of the strongest genius fell into his hands easily.
Of course, this isn't good news either because in the black market, many people had put a bounty on his head.
Someone wants to kidnap him and use his genius mind to make a profit. Someone whose profit was harmed by Rutosa's doings was hoping something would happen to him.
All in all, not many wish something good to happen to him.
But Gojo's security and the Rutosa's banknote ability are pretty good. At least, he was not harmed for even a single strand of hair during the year that he spent in the foreign land.
Well, it is a given because he hired many bodyguards and has been very secretive all the time.
Even if someone from Jujutsu World wants to harm him. The money and effort needed to do that would be astronomical, more than anyone or any country could imagine.
Of course, everything he does during this year isn't just about making money and being famous.
Making money is just to lay the foundation, and when the foundation is steady, then he can start to do more things.
"Everyone, guard outside. No one is allowed to enter as long as I don't give permission."
Rutosa said to his bodyguards before entering the specialized room.
This room was made according to his requirements. That is to make it as quiet as possible.
Due to the banknote ability, this room is as quiet as the quietest room in the world, which can be regarded as more than enough for a training room for Black Flash.
Rutosa didn't quite let go of Black Flash during this year.
As soon as Rutosa achieved financial freedom without the Gojo clan's help. He has been hiring many jujutsu sorcerers with the records of unleashing Black Flash before.
However, Black Flash is still a pipedream because these sorcerers have been trying to unleash Black Flash for Rutosa to see without seeing a result, so Rutosa didn't see any hope in them.
Inside the room, there's nothing else but a training dummy as a target.
The absolute silence filled Rutosa's body. So silent that he couldn't even hear his breathing and heartbeat.
But because of this silence, Rutosa could feel his negative emotions and control his cursed energy smoothly without any distraction.
Then Rutosa pulls out a bottle filled with capsules from his pocket.
"MDT-48."
"One of the performance enhancing drug that many scientists and I spent months and billions of dollars on R&D. If this is still not possible to master Black Flash, I will definitely give up on the spot."
This is the unorthodox method that Rutosa thought of a year ago.
Rutosa didn't know why a modern world like Jujutsu didn't make any drugs that could enhance the performance of Sorcerer but he didn't mind being the first one.
MDT-48 isn't a drug that could enhance his cursed energy or anything. It's just a drug that could enhance his brain, focus, and concentration to the limit.
But just this small drug cost him billions of dollars of R&D, and even its side-effects is also strong.
It will cause strong dizziness, nausea, impairment in vision, etc., after the drug wears off. Rutosa might need a long period of a few months for medication therapy after taking just this one drug.
That's why he said that he would give up because just trying once is already enough. Ruining his body is definitely a no-no.
As for how he knew about its side effects and how long they need for medication therapy…
Well, let's just say that those Sorcerers that he hired for Black Flash are still useful in one way or another.
Luckily, he didn't dismiss them after knowing that they can't do Black Flash.
Rutosa gulped and swallowed MDT-48 down his throat and waited quietly.
The moment MDT-48 touches his stomach acid, it instantly dissolves and circulates into his bloodstream.
Suddenly, something clicked inside his brain. The world suddenly move slower, his vision sharpened, and he could see dust moving slowly in the air.
The circulation of cursed energy has become slow, or rather, his perception of speed has become so fast that everything has become very slow.
"(This is it. This state. This focus. This concentration. Everything has reached a new height.)"
Rutosa has successfully entered the 'Zone' state.
It is the state when they reach their maximum potential. It is a superlative of regular concentration and focus.
Rutosa's vision has become monochrome, and even without this room, his hearing is completely filtered.
His red eyes burned brightly as his mind and every cell in his body focused on the training dummy before him.
Then he moved.
A simple and unpretentious punch.
That punch is a textbook-like punch that could be said to be the example of every punch in existence.
A punch that ignores air resistance and reaches the target within milliseconds.
BOOM
The moment that the punch hit the training dummy, the cursed energy inside Rutosa was raging wildly.
Acceleration.
The cursed energy accelerates to its absolute limit. Every particle of cursed energy breaks the barrier of sound and accelerates to supersonic speed.
Screeh
The space between the punch and the training dummy distorted and wrinkled like fabric. Then cursed energy rushed in and tore a hole in space-time.
It is a very small hole. So small that it is not noticeable.
But the moment that hole is opened, the wild and untamed malice and cursed energy inside that hole flood out and attach to Rutosa's punch in the form of black lightning.
Black Flash—Instantly mastered.
Training Dummy—Instantly obliterated.
Room—Instantly exploded from inside.