Six years later.
Inside the Gojo Family dojo, two small figures were sprinting under the scorching sun.
"Satoru, hurry up! I've already lapped you thirty times!"
Satoru Gojo looked at the back of his older brother, Gojo Ze, and wanted to cry but had no tears.
"Brother, you... slow down. It's too hot, I feel like I'm about to catch fire!"
"What? Satoru, do you feel it too? That's right, it's the fire of youth burning!"
Gojo Ze was drenched in sweat, but his small body already contained a powerful physique.
"Come on, Satoru, shout with me! Effort!!! Struggle!!!"
"Effort! Struggle!"
"Louder, I can't hear you!"
"Effort!! Struggle!!"
"I can't hear you! I just can't hear you! How do you expect to become the strongest Jujutsu Sorcerer with such a tiny voice?"
"Effort!!! Struggle!!!"
"Good! Very spirited!"
A group of elders from the Gojo Family saw this scene, and gratified smiles appeared on their old faces.
Although he was still young, Satoru Gojo had already begun to show a wild and lazy, mischievous personality.
Fortunately, his older brother, Gojo Ze, had been mature and steady since he was a child, starting hellish training as soon as he was old enough to understand things.
Training himself wasn't enough; he even dragged Satoru Gojo along with him.
From the most basic Taijutsu to the study of the Limitless / Limitless Void and the development of the Rikugan / Six Eyes.
Because they worked so hard, the two had already broken the training records of the Gojo Family's history at a young age.
At only six years old, the two had already completely mastered the "Absolute Defense" of the Limitless / Limitless Void and learned Cursed Technique Lapse: Blue!
Especially Gojo Ze, who could even proficiently use Blue for long-distance teleportation.
The younger generation is truly to be feared!
"Alright! Three hours of full-speed running training complete!"
Accompanied by Gojo Ze's shout, Satoru Gojo, who was following behind, slumped onto the ground.
"Huff... huff... huff..."
Satoru Gojo panted heavily, looking like he had lost all hope in life.
"Don't sit on the ground right after exercising. Get up and walk a bit!"
Gojo Ze stepped forward and reached out his hand, pulling Satoru Gojo up from the ground.
Satoru Gojo looked resentfully at this "cheap" brother of his and asked the question he had already asked eight hundred times.
"Brother, is it really necessary to grind this hard?"
Of course it's necessary!
Gojo Ze rolled his eyes and thought to himself.
My foolish younger brother, do you think your onii-chan doesn't want to just lie flat and slack off?
That old schemer Kenjaku is acting sneaky in the shadows, and the big boss Ryomen Sukuna is watching like a hawk.
Your brother can't even sleep soundly at night!
At the thought of Satoru Gojo being cut in half in the future, and the possibility that he might suffer the same fate, Gojo Ze couldn't eat or sleep in peace.
He felt like he was becoming depressed!
Only by rapidly increasing his strength, empowering himself, and truly reaching the level of "Throughout Heaven and Earth, I alone am the honored one" could he feel a bit of peace.
This is probably what you'd call "insufficient firepower phobia"!
Looking at Satoru Gojo beside him, Gojo Ze said seriously, "Satoru, you don't actually think you're invincible just because you learned the Limitless / Limitless Void, do you?"
Satoru Gojo was stunned. "Isn't that the case?"
"..."
Gojo Ze looked at him with a face full of disappointment. "The Absolute Defense of the Limitless / Limitless Void is, in the end, a Cursed Technique activated by Cursed Energy. What if there's something that can ignore Cursed Energy or destroy the structure of the Cursed Technique?"
Familiar with the plot, Gojo Ze knew very well that there were many ways to crack the Limitless / Limitless Void.
First are special Cursed Tools, such as the Inverted Spear of Heaven and the black rope, which can ignore Cursed Energy and thus nullify the Cursed Technique.
Second are special Cursed Techniques, such as Simple Domain, which involves a very small-scale Domain Expansion around the body, using its Sure-hit effect to neutralize the defense of the Limitless / Limitless Void.
Of course, the second method is relatively difficult because the prerequisite is that one must learn Domain Expansion.
Furthermore, shrinking the range of a Domain Expansion to be close to the body requires a very high level of Cursed Energy control from the user.
Hearing Gojo Ze words, Satoru Gojo fell into a rare moment of contemplation.
But he immediately showed a confident smile.
"No problem. I've already learned to use Blue for small-range teleportation. Even if an enemy has the ability to break through the Limitless / Limitless Void, they won't be able to catch me!"
Seeing that Satoru Gojo had already begun to show the arrogance and stubbornness of "Slick Satoru," Gojo Ze said no more.
Some people just won't listen until they hit a wall.
In that case, let Toji Fushiguro give you a good lesson in the future!
My foolish younger brother!
Gojo Ze shook his head. "In that case, you should rest well. I'm going to practice Taijutsu!"
The Taijutsu he was currently practicing was the Gojo Family's Shinbu Style, a family-inherited Taijutsu system that integrated swordsmanship, fist techniques, palm techniques, leg techniques, sumo, and more.
This kind of Taijutsu system, which had evolved over hundreds of years and been refined by countless predecessors, was quite effective in actual combat.
However, Satoru Gojo wasn't very interested in it.
Because some of the Shinbu Style training required wearing a fundoshi and doing shiko, which was too embarrassing and completely didn't fit his image as "Slick Satoru"!
"Oh right, Satoru, I forgot to tell you. I passed the Shinbu Style disciple test the day before yesterday and reached Kaiden!"
"Huh?"
Satoru Gojo was completely stunned.
Martial arts schools generally divide disciples into Kirigami, Mokuroku, Kaiden, Menkyo Kaiden, Innovative Grandmaster, and so on.
Kirigami refers to a disciple who has just entered the school, generally only practicing basic skills and not being qualified to learn the school's exclusive martial arts; Mokuroku means they have been officially listed under the school and can formally learn the arts.
Kaiden means they have reached a high level of mastery in the school's martial arts and can announce their school's name when sparring with others.
Menkyo Kaiden means their skills are already perfected, and they can teach the school's martial arts to others without asking for permission, essentially being a founder-level existence.
As for an Innovative Grandmaster, they are those who, on the original basis, carry out deeper improvements to the school's martial arts, reaching a level that surpasses their predecessors, and can be called a Martial Arts Grandmaster.
At six years old, Gojo Ze had already reached Kaiden, an achievement that other Gojo Family members would take over a decade to complete.
As for Satoru Gojo... he was still a Kirigami.
"Brother, I beg you, stop grinding!"
Satoru Gojo looked at the back of his brother, and two lines of clear tears streamed down his face.
He felt like he was always living in his onii-chan's shadow.
Satoru Gojo rushed forward and hugged Gojo Ze's leg, looking up at him pitifully, with a "if you dare to grind, I'll dare to die" kind of mental state.
The Gojo Family elders also stepped forward to advise, "Young Master Gojo Ze, too much is as bad as too little. Training should be a balance of work and rest. Why don't you two go out for a walk today?"
"Mm-mm-mm!"
Satoru Gojo's head shook like a bell.
Gojo Ze sighed. "Sigh! Fine, fine, let's just relax today!"
"Hooray!"
Satoru Gojo wept with joy.
He felt like the future was bright!
"Genshou, you are responsible for the safety of Young Master Ze and Young Master Satoru!"
The elder handed the task of protecting the two brothers to an excellent Grade 1 Jujutsu Sorcerer in the family, Gojo Genshou.
The group of three changed into casual clothes, walked out of the Gojo Family estate, and arrived at the bustling Akihabara.