From Joy of Life, the Tian Gang is reversed

Chapter 370 Are you senile? Doesn't your conscience hurt?
"What, the Naruto's secret taijutsu?"

Looking at Jiraiya's resentful eyes, Hiruzen Sarutobi was completely bewildered. "What Hokage secret taijutsu?"

"It's the kind of taijutsu that helps improve chakra control." Jiraiya said with a hint of complaint in his voice.

Back then, among the three disciples of Hiruzen Sarutobi, he was the dumbest and had the worst chakra manipulation skills. He always lagged behind the other two in climbing trees and wading through water, and was ridiculed countless times. He never imagined that besides climbing trees and wading through water, there was such a magical taijutsu, a taijutsu that uses specific movements to drive one's own chakra and improve chakra proficiency. If his teacher had taught him back then, perhaps he wouldn't have been ridiculed for so long.

"What nonsense are you talking about? There's no such thing as a physical technique!" Hiruzen Sarutobi felt uneasy at Jiraiya's inexplicably hurt tone.

"How could there not be? I saw it with my own eyes."

"Saw it with your own eyes?" Hiruzen Sarutobi seemed to realize something and suddenly looked up. "Where did you see it? Didn't I tell you to go see Asuma? You didn't see him, did you?"

"As expected, teacher, you really were keeping secrets!" Jiraiya exclaimed upon hearing this.

"I...I..." Hiruzen Sarutobi stammered twice before slamming his hand on the table. "Go and fetch Asuma."

uuuuuuuuuuuuuuuuuuuuu...

The two secret agents outside the door quickly left.

"teacher……"

“There are no secrets of the Hokage.” Hiruzen Sarutobi seemed to know what he wanted to ask, but he just rubbed his temples helplessly. “If you really saw a taijutsu that could help someone quickly master chakra manipulation, it wasn’t taught to him by me, but developed by himself.”

"You developed it yourself?" Jiraiya looked at him with a "you're kidding me, I don't believe you for a second" expression.

"Jiraiya, there's something I haven't told you yet, and I really don't know how to tell you it." Hiruzen Sarutobi sat down with a headache. "My son, Sarutobi Asuma, is a genius."

"A genius?" Jiraiya was slightly taken aback, not understanding what Hiruzen Sarutobi meant.

Geniuses are quite common!

Orochimaru is a genius, and so is Tsunade...

There are plenty of geniuses in Konoha, and he himself can be considered a genius!

"The genius I'm talking about isn't a genius in the ordinary sense, but the kind of genius like the first generation, who can change an era."

Seeing Jiraiya's disbelieving expression, Hiruzen Sarutobi sighed. "If he weren't my son, if I hadn't witnessed all of this over the past few years, I wouldn't believe it myself." He looked up at Jiraiya and said, "A month ago, I recalled Sakumo from the border. Do you know why?"

"Aren't you afraid he'll achieve another great feat?" Jiraiya puffed out his chest, as if to tell Hiruzen Sarutobi that he wasn't stupid either.

Hiruzen Sarutobi's face darkened. "No, it's because Asuma wanted to learn swordsmanship from him that I brought him back."

"You transferred a border general back to Konoha just because your son wanted to learn swordsmanship?" Jiraiya's eyes widened. He hadn't expected that Hiruzen Sarutobi, the Hokage, would abuse his power for personal gain, and even say it so openly in front of him.

This is so inconsistent with Hiruzen Sarutobi's character design.

"That's not the important thing. The important thing is that he surpassed Sakumo in swordsmanship in just one month..."

"What? That's impossible!" Jiraiya almost jumped up when he heard this, and shouted, "Old man, don't just say things to elevate your son! I'm not really stupid!" He knew Asuma, although he hadn't met him often. His impression of Asuma was that he had a bad temper and a strange personality, but nothing else was particularly special about him!
“If I were only trying to elevate my son, how could I dare to say such a thing?” Hiruzen Sarutobi shook his head. “Look at this…”

He raised his hand, and chakra began to gather and swirl in his palm. Soon, a high-speed spinning blue chakra ball appeared in Hiruzen Sarutobi's palm.

"This...this is..."

"A-rank, no-seal ninjutsu, Rasengan, which Asuma created when he was four years old."

Jiraiya stared at the Rasengan in his hand, blinked, and after a long while said, "Impossible. This ninjutsu is A-rank. How could a four-year-old child, who doesn't even have much chakra, create a ninjutsu of this rank?"

“Yeah, I also find it strange, but it just happened.” Hiruzen Sarutobi dispersed the Rasengan in his hand and said, “No one will believe this if you tell others, and no amount of explanation will help. You need to experience it for yourself to understand.”

"I don't believe it anyway," Jiraiya said blankly, repeating it over and over as if he were reaffirming his belief.

Hiruzen Sarutobi shook his head at his expression. "Alright, let's get down to business. The reason I asked you to come here is because I want Asuma to graduate early. You can take him on some missions and let him gain some experience."

"No way!" Jiraiya almost jumped up. "How can this be? I have my own things to do, how can I play with children?"

“You’re a Jonin of Konoha, not a wandering ninja. How many days a year do you think you’ll actually spend in Konoha? After the war ended, you always delayed your missions until the very last minute before returning. Sometimes you even refused to accept missions and left the village without permission. Is that acceptable?”

"No, old man, I..."

"That's enough, it's settled then, let's wait for Asuma to arrive..."

Before they could finish speaking, they heard footsteps at the same time, and in a minute, the door to the Hokage's office was pushed open.

"Old man, what do you want?"

Asuma pushed open the door and the first thing he saw was Hiruzen Sarutobi. The second thing he saw was the white-haired ninja, and he raised an eyebrow. "Jiraiya-senpai is here too!"

"Asuma, I'm asking you, what's this about the Hokage's secret taijutsu?"

Asuma frowned slightly and shook his head, saying, "Those are a few movements I came up with to improve my chakra control. You can't do them; you're too old, your bones are too brittle, you'll hurt your back if you practice them."

"Did you really come up with that?" Jiraiya exclaimed in surprise, unable to resist interjecting.

"Yeah, is there a problem?" Asuma glanced at Jiraiya, then turned to Hiruzen Sarutobi and said, "Hey, old man, you called me here just for this?"

"No, it's for something else."

"what's up?"

"You should graduate early. After graduation, go on missions with Jiraiya and gain experience as soon as possible. You need to understand, a ninja..."

"You're senile." Asuma showed no mercy to his father, the Hokage, and was practically pointing his finger at him and cursing, "How can you be Hokage? Don't you have any conscience? I'm only six years old, and you're sending me to graduate and then go on missions to kill people? Who do you take me for, a born killer?!"

(End of this chapter)