Playing Ninjutsu in Jujutsu Kaisen!

"Relying on Cursed Tools..."

Natsu Hiraku recalled Teacher Gojo's words when he took him to get Cursed Tools. His own weakness was low Cursed Energy, making him unsuitable for prolonged combat, which was why he trained his body and close-quarters combat. It was just that he later found swords to be more effective.

"Yes, purely in terms of fighting, your Cursed Technique is already near perfect. But you can still reach a higher level, and that's learning Black Flash!"

Todo Aoi said this as he assumed a defensive stance. "When the error between the impact of a strike and Cursed Energy is within 0.000001 seconds, it creates a spatial distortion with a power of 2.5 times the average."

"Although few Sorcerers have learned it, and no Sorcerer can deliberately unleash Black Flash. However, there's a world of difference in the distance of their Cursed Energy core between those who have experienced Black Flash and those who haven't. So, attack me! Let me witness your growth! Best Friend!"

Natsu Hiraku fell silent, looking down at his right hand, scarlet Cursed Energy covering his fist.

The Cursed Energy used by Sorcerers is extracted from negative emotions. It flows throughout the body starting from the navel, passing through the shoulders and arms, and finally ending at the fist.

But during combat, when facing unexpected situations, Cursed Energy can't flow to the fist that quickly. This is the so-called "Cursed Energy Delay." Therefore, Natsu Hiraku usually stores Cursed Energy in various parts of his body at all times when he goes out to prevent unexpected situations.

"0.000001 seconds? That's really strict."

Natsu Hiraku looked at Todo Aoi, who had already assumed a defensive posture, and adopted an attacking stance, taking a deep breath. He reminded him, "If it's 2.5 times, then Best Friend, you better be ready to defend! After all, I'm in super great shape today!"

"Of course! Best Friend!"

Todo Aoi grinned, and blue Cursed Energy instantly enveloped his entire body, like a burning flame.

Seeing this, Natsu Hiraku had nothing more to say. After all, he had just learned Reverse Cursed Technique under Suguru Geto's tutelage, and he felt refreshed right now.

Although 0.000001 sounded harsh, he had never aimed for the peak of close-quarters combat. After all, with the System's missions piling up, his Cursed Energy would eventually surpass Yuta's.

But learning it wouldn't hurt, and he wouldn't lose anything.

Natsu Hiraku slowly closed his eyes, breathing in the turbid air in his chest. He calmed his mind, emptied his brain, and focused his attention on his fist.

His mind was clear, he could hear the wind passing by, Cursed Energy circulated around him, concentrating for an explosive release!

When his eyes opened again, scarlet pupils appeared, and two tomoe spun rapidly. As if he had an epiphany, he sensed that this was the moment to throw a punch.

He threw a punch fiercely. The originally scarlet Cursed Energy, at the moment it touched Todo's arm... the Cursed Energy flashed black!

"Black Flash!"

"Grasp the feeling of this strike, continue!" Todo Aoi was forcefully pushed back a meter, but he rallied, bending his legs and stomping on the ground. Cursed Energy erupted within him, and he shouted.

"Got it, Best Friend!"

Natsu Hiraku stomped on the ground, charging forward like an arrow, and threw his right fist!

At this moment, he was like a clear mirror, throwing this punch based on feeling, meeting the strict requirement of 0.000001 seconds.

After all, the moment of contact was fleeting. Even with the Sharingan, he could only predict roughly. It was difficult to achieve within microseconds, no wonder Todo Aoi said no Sorcerer could actively use it.

It was only today, feeling refreshed after learning Reverse Cursed Technique, that he could find the feeling so quickly. After all, a good mood always brought unexpected things.

In the microsecond of contact, the Cursed Energy once again flashed black.

"Black Flash!"

"Dong!"

Todo Aoi was once again pushed back. A blissful smile spread across his face. Looking at Natsu Hiraku before him, he knew another prodigy had been born. Two consecutive Black Flashes!

He stabilized himself, resumed his defensive stance, and shouted, "Steady your mind, grasp the feeling, continue!"

"Ooh!!"

Natsu Hiraku gathered his strength and struck again. He could feel that the flow of Cursed Energy within him no longer required deliberate control but had become as natural as breathing, with a strange sense of support, as if he were invincible at this moment...

In the instant his fist met his arm, only the black light of spatial distortion illuminated everything.

"Black Flash!"

"Pa!"

Todo was pushed back several meters. This time, he didn't shout to continue but rubbed his reddened arm and called a halt.

"Alright, that's enough for now, Best Friend. Although I still want to be your punching bag, I feel like getting hit in the same spot four times would break my bones."

"Okay, thank you very much, Best Friend. I sincerely thank you, you've helped me twice."

Natsu Hiraku loosened his clenched fist, a smile on his face. After all, he had gained a lot today, learning Reverse Cursed Technique and Black Flash. It looked like he would have to ask Teacher Gojo for other extension techniques tomorrow, and then combine them with the Ninjutsu he drew. Whoever came would die.

He felt he was getting close to the pinnacle of the world.

"Twice? Didn't I only teach you Black Flash?"

Todo Aoi was a bit confused at this moment but didn't pay it much mind. He said, "How about we go watch the replay of Takada's concert together, Best Friend?"

"..."

Natsu Hiraku thought for a moment and declined, "I... I think Takada should shine on stage forever. Watching her on my phone wouldn't be perfect enough."

"Hiss... That's true. As expected of my Best Friend, you truly love Takada deeply." Todo Aoi gave him a thumbs-up, admitting defeat.

"..."

Natsu Hiraku didn't know what to say. Todo Aoi's imagination was truly wild, as if another world was operating independently in his mind.

At some point, the sun in the sky had set, and the clouds were illuminated by the lingering afterglow. Seeing this, Natsu Hiraku said, "Let's go out for dinner together, my treat."

"Okay."

At a concert hall.

Right now, Yuta Okkotsu stood on stage, his lips slightly parted as if he wanted to say something, but nothing came out. Below him, a crowd of cheering spectators stood, with Gojo Satoru among them.

Gojo Satoru shouted, "Go for it, Yuta! Overcome your fear and sing out everything you're too scared to say! This is special training!"

"So... so many people... If it were Hiraku, what would he do? He'd probably sing bravely..."

Yuta Okkotsu swallowed, feeling a bit nervous, worried he wouldn't sing well enough.

But at this moment, everyone was looking forward to his singing. No matter what, he couldn't let them down.

Gojo Satoru watched Yuta Okkotsu, who had started singing on stage, and nodded with satisfaction. He knew that booking a concert hall last minute was very expensive, and he had to pay people for it. But if his student could overcome his fear, the money didn't matter. After all, as a teacher, he was very responsible!

Meanwhile, Kento Nanami sat in a bar, fantasizing about their future lives with Kirara Hoshi.

The next day.

7:30 AM

Kyoto School Principal's Office.

Yoshinobu Gakuganji, leaning on his cane, sat on the sofa. He glanced at the three people present and asked, "Where did Todo go again?"

Noritoshi Kamo replied, "He went out to attend Takada's handshake event. He'll be back by noon."

"..."

Yoshinobu Gakuganji hesitated for a moment and said, "Never mind. I called you here today because there's a mission. We're going to surround Hiraku Natsu and get a feel for his abilities."

"That... doesn't seem like a good idea. With Todo there, he probably won't let us gang up on someone named Hiraku Natsu. It was like that before; he completely destroyed one of my cursed corpses without any warning," said Mech-Maru, who had switched to controlling a new cursed corpse.

"Yeah, Todo hates it when others interfere with his fights. He'll kill you," Nishinomiya Momo said, clutching her broom.

"Don't worry about that. All you need to do is make sure Hiraku Natsu from Tokyo School shows his full strength. You can leave now."

"Yes!"

They exchanged glances and left immediately.

After they left, Yoshinobu Gakuganji muttered to himself, "Besides Yuta Okkotsu, the one Gojo Satoru values is probably Hiraku Natsu. Those he values will never be weak in the future. This world shouldn't have a second Gojo Satoru. We must be wary, or the higher-ups of the Jujutsu world will eventually be overthrown by that reckless brat."

"Next... are the rules for this team competition."

Yoshinobu Gakuganji looked down at the white paper on the table and took out his phone to make a call.

Meanwhile, at the Kyoto School training grounds.

Hiraku Natsu, Yuta Okkotsu, and Kento Nanami were on their morning run, having started at 5:30 AM and training until now.

Kirara Hoshi cheered them on from the side.

Noritoshi Kamo and the others, who had just left the principal's office, looked at the Tokyo School students still training. Nishinomiya Momo asked, "Are we really going to do this? If Todo catches us, I feel like we'll get beaten up."

Mech-Maru said with deep feeling, "Yeah, he didn't hesitate at all when he crushed my cursed corpse. I can't imagine how someone who doesn't look that strong could fight Todo-senpai to a standstill."

Ever since Todo Aoi had easily crushed his cursed corpse yesterday, Mech-Maru had developed a sense of awe for the senior. He was too strong!

Noritoshi Kamo looked at Hiraku Natsu running in the training ground and said, "We'll see when the time comes. If Todo encounters Hiraku Natsu first, then we'll retreat. If we encounter him first, then as the principal said, we'll probe his abilities, and we can retreat when Todo arrives."

The two agreed with their captain's words. After all, they had no other choice. Todo Aoi wouldn't actually kill anyone, but a severe beating was inevitable.

After completing a lap, Hiraku Natsu saw the Kyoto School group watching from a distance and waved, calling out, "Want to join our morning training? The early bird catches the worm; training can make the whole day energetic!"

"Old man, what team competition rules have you cooked up this time?"

Gojo Satoru, wearing his signature sunglasses, pushed open the principal's office door and asked Yoshinobu Gakuganji.

"It's here. Take a look, Gojo Satoru."

Yoshinobu Gakuganji didn't get angry. The finger holding his cane pointed to the white paper on the table. He knew that getting angry in front of this guy was useless; he'd just be labeled an incompetent.

"Alrighty!"

Gojo Satoru bounced onto the sofa and picked up the paper on the table. His interest grew as he read, and he asked, "Are you guys serious? Constructing such a large-scale labyrinth isn't something that can be done in a short time."

"Don't you have yourself? Gojo Satoru, can't even you construct this thing?" Yoshinobu Gakuganji raised an eyebrow, his gaze fixed on the unrestrained Gojo Satoru.

"Interesting."

Gojo Satoru stood up and stretched his shoulders, saying, "Alright, let's get to work. We'll try to have this thing constructed before lunch at eleven."

"Okay, I'll take you there."

Yoshinobu Gakuganji stood up and led Gojo Satoru out of the principal's office. As they passed the training grounds, they saw the Tokyo School and Kyoto School students on their morning run.

Gojo Satoru said with satisfaction, "Not bad. It's fostering friendship between the two schools."

"Yes, after all, the future of the Jujutsu world depends on these children. Of course, it would be even better if there weren't dangerous people like you around," Yoshinobu Gakuganji said, casting a glance at Gojo Satoru.

"Hmph, think whatever you old folks who are half in the grave want. All I know is that I'm going to train more geniuses to change this rotten Jujutsu world."

Gojo Satoru smiled, looking at the students in the field with anticipation in his eyes.

"That's why I say your thinking is dangerous."

Yoshinobu Gakuganji said as he continued walking towards their destination. Gojo Satoru glanced back and followed behind.

At the training grounds.

The two schools' participants engaged in a relay race, as if neither side would concede to the other, sprinting wildly on the track. Nishinomiya Momo, due to her lack of skill in running, was grouped with Natsu Hiraku. She could use her "Tsukumogami Technique" to fly on a broom.

"Tsukumogami Technique: The data I obtained allows for the manipulation of objects."

Nishinomiya Momo glanced at Natsu Hiraku and said, "Don't think just because you can temporarily fight Todo on even terms that you can catch up to my speed. You definitely won't be faster than me with just physical strength."

"It's fine, it's fine. I'm pretty amateurish when it comes to running. After all, stalling for time during a fight is my specialty."

As Natsu Hiraku spoke, Yuta Okkotsu rushed past him. Mech-Maru also let out a "kaka-ka" sound as he sprinted along.

The race rules were as follows: one lap on the training ground track was 500 meters. Each person ran two laps, then passed the baton to the next person. The person receiving the baton could only start running after catching it, which also tested their explosive starting power. The losing team would have to fulfill the winning team's requests, as long as they weren't excessive.

Natsu Hiraku was assigned the third and fourth laps. Kinji Hakari was dueling with Noritoshi Kamo, who was also a second-year.

Although a team battle was scheduled to start at noon, there was nothing wrong with competing against each other at this moment. Everyone thought so.

Yuta Okkotsu currently had a slight advantage. Although running purely on physical strength without using Cursed Energy or Cursed Spirits was difficult, it didn't mean he would give up.

Seeing Natsu Hiraku still a hundred meters away, Yuta Okkotsu took a deep breath, gritted his teeth, his leg muscles bulged again, and he accelerated once more.