"This technique is truly amazing. Unlike regular chakra, which is produced by extracting physical energy from 130 trillion cells and combining it with mental energy, this technique absorbs natural energy from the environment. In simpler terms, like something from a martial arts world, it's 'ki.'"
"So... does this mean it's like another kind of Sage Mode?"
"And it can even be stored inside the body, ready to use whenever needed."
"The higher the mastery of the technique, the more refined and vast the natural energy that can be stored. It's not like Naruto or Jiraiya, who have to gather natural energy in the moment. Plus, heaven technique has features regular Sage Mode doesn't have. At higher levels, you gain a flash-step-like teleportation skill, body-protecting energy, and various powerful attack techniques," Aizen thought in amazement.
It seemed he had struck gold this time. Not only did he gain Aizen's zanpakuto with full hypnosis abilities, but he could also activate a Sage Mode through this technique. And once he became familiar with heaven technique various moves, his power would skyrocket in no time.
By then, he'd have enough strength to protect himself. What a relief.
But for now, he needed to lie low.
No way could he let the Konoha F4 find out. If they did, Danzo might really dissect him like some lab rat.
From now on, he would live as an ordinary ninja.
Time flew by, and soon it was the first day of ninja school.
To make up for the loss of manpower after the Nine-Tails incident, the school was accepting many new students. Any child of the right age could sign up, and after some screening, the school would issue an acceptance letter.
As the child of a ninja, Fujiwara Aizen naturally received his.
It made him a little excited.
Ninja school was where ninja skills were taught. With his system, he was sure to gain immense power in the future.
But great power still needed to be learned and applied properly.
The necessary knowledge of ninjas was something he couldn't afford to skip.
He didn't want to end up like Kaguya, the strongest in the world but with zero battle intelligence.
As the saying goes, good things come in pairs, and today also happened to be Aizen's sixth birthday.
His progress in heaven technique had finally reached the first level.
In an instant, Aizen felt his perception spike. He could hear the noise on the street, the screams of Naruto being abused by his caretaker, Kakashi standing in despair at Obito's grave, and Danzo arguing with the Third Hokage over Naruto's custody.
"So this is the first level of heaven technique? And this perception... I knew it! Once I reach the first level of the technique, I can enter what's called Sage Mode in this world." Aizen couldn't help but feel proud.
He then tested Kyōka Suigetsu and was surprised to find that in Sage Mode, its full hypnosis could last an entire day.
He would just need to be careful and conceal his energy when activating the technique. Otherwise, perceptive ninjas might notice something strange. After all, the amount of chakra in Sage Mode was far beyond normal.
Of course, for someone who had mastered this technique, concealing his presence was easy.
Now he was curious about how his jutsu would perform in Sage Mode, using his technique to cast them.
Unfortunately, his parents died in the Nine-Tails attack, so he only knew the basics of chakra extraction. Forget jutsu—he didn't even inherit a single coin. Even if his parents had left something, it would've been taken by Hiruzen to 'rebuild the village.'
With these thoughts, Aizen walked to the mirror and changed into new clothes he'd never worn before.
In the reflection, a young boy stared back, dressed in a white, fitted long-sleeve shirt and black casual pants. His black hair was trimmed just right, and with his handsome features, he looked like an adorable little heartthrob.
"Not bad at all," Aizen shamelessly praised his reflection. Slinging his ninja school-issued backpack over his shoulder, he headed for the academy.
By the time he arrived, many parents were already there with their children, signing them up. Aizen's presence didn't draw much attention, as everyone's eyes were on Uchiha Itachi.
Most of the adults looked at Itachi with mixed feelings, with a hint of resentment in their eyes.
It was obvious that, thanks to a certain someone's propaganda, the belief that the Uchiha Clan had controlled the Nine-Tails to attack the village had begun to take root.
Just like what had happened with Konoha's White Fang.
And as for our greatest Hokage ever, Hiruzen Sarutobi, he remained neutral as always—neither confirming nor denying anything.
In a way, this was the result of a trade-off between the Third and Danzo.
Hiruzen reclaimed the Hokage title under immense pressure, and in return, Danzo didn't walk away empty-handed. He, along with Homura Mitokado and Koharu Utatane, formed Konoha's Elders Council, becoming the infamous Konoha F4 in the eyes of many fans.
There's a saying: 'Uchiha determines the peace of the ninja world, and Konoha F4 determines the chaos of Konoha.' These guys were the pioneers of ninja-world corruption.
At the same time, Danzo's influence in Konoha continued to grow. As long as his actions didn't threaten Hiruzen's family or go too far, the Third didn't care much.
Aizen was used to all of this by now. He wasn't going to stick his neck out for the Uchiha. All he had to do was stay low-key and keep to himself.
Until he had enough power, he'd live as an ordinary student at the academy.
Whatever happens next, he'd leave to fate. If Konoha couldn't tolerate him, he could always leave. After all, with Kyōka Suigetsu, leaving the village wouldn't be difficult. He had no emotional ties here and certainly no sense of belonging.
Though soon, there would be exceptions.
Aizen moved through the crowd, handed in his acceptance letter to the two chunin in charge of registration, and as soon as he finished, a small figure appeared behind him. A soft, childlike voice followed, "Aizen-kun, long time no see."
"Oh, yeah, it's been a while." Aizen took the class info card from the teacher and turned around to see Uchiha Izumi. She stood with her hands behind her back, seemingly holding something, leaning forward slightly, studying him with curiosity.
"That's a plain response," Izumi pouted, then stepped closer, her cheeks a bit flushed as she compared their heights. "Aizen-kun, did you grow taller?"