However, all of this was undoubtedly worth it.
Every ninja, due to different innate talents, has varying results in activating their bodily chakra.
But by the time they reach Toshiro's age, the methods to enhance one's power are essentially the same.
On one hand, one would focus on ninjutsu, taijutsu, and genjutsu while continuously training to increase their physical and spiritual energy to augment their chakra.
On the other hand, they would extract chakra from food, rest, and naturally overflowing cellular energy to target specific areas for activation, be it vision, smell, strength, speed, or nerves.
However, each activation is done in moderation, partly due to limited energy and significantly because of insufficient chakra.
Activating one's body demands enormous energy; relying merely on naturally produced bodily energy to totally enhance oneself is impractical.
Most ninjas gradually enhance themselves based on actual needs, resulting in a slow rise in power. Since they only strengthen certain aspects, shortcomings become evident and exploitable.
Only Jinchuriki, due to the unconscious release of their tailed beast's chakra, enjoy extraordinary enhancements.
Successfully mastering Sage Mode undoubtedly brought Toshiro unparalleled benefits; he no longer needed to choose between enhancing his strength, speed, or reflexes. Now, he could have it all.
When he first attempted it,
Using two shadow clones to transform his concentrated sage chakra into Yin and Yang properties in an orderly manner to himself, Toshiro started his bodily activation.
Cautiously manipulating the energies, mixing them in a perfect ratio, and controlling them as they gently circulated and dissipated through his meridians,
Toshiro felt a sensation he had never experienced before.
It was akin to drought-ridden land encountering a life-saving rain or dry wood meeting a roaring fire. He felt like he was soaking in a hot spring.
A warmth enveloped his entire being as if he had returned to the womb where life began to sprout slowly.
This sensation not only manifested physically but also mentally, casting away lingering anxiety, irritability, and negativity, replaced with tranquility and purity.
Such feelings arose because he had never ceased exploiting his cellular energy over the years.
Since he first started extracting chakra, over the past six years, his physical training, shadow clone studies, and ninjutsu practices all drained his chakra, which naturally relied on his cellular and spiritual energies to bear the side effects.
Only because his body was still growing did he not notice. Once his developmental phase ended and his prime passed, the impacts would gradually emerge.
But this time, the inclusion of natural energy caused his chakra to increase hundreds of times over, providing a soothing relief to his worn-out and hungry body and spirit, resulting in overwhelmingly positive feedback.
Exploiting one's potential is no match for gaining energy from external sources to enhance oneself!
...
Unfortunately, there is no such thing as an omnipotent power!
Looking at the two shadow clones behind him and the calls from outside, Toshiro wondered, "What does Inahika-san want this time?"
Upon opening the door and seeing the visitor outside, Toshiro felt puzzled but curious about what the other person wanted.
He was aware of 'Uchiha Inahika', nicknamed 'Wolong Fengchu' (literary prodigies of Uchiha clan) by fans in his previous life.
One day in the future, they would accuse Itachi of 'murdering' Shisui in a confrontational manner, only to be overpowered by thirteen-year-old Itachi effortlessly with mere taijutsu, despite their seniority.
...
"Why are you cooped up at home in broad daylight?"
Upon entering, his accuser didn't explain his visit but instead questioned Toshiro's closed-door stay.
Internally rolling his eyes, Toshiro thought, 'What's it to you if I close my door?'
Though he thought this way, he couldn't respond like that. While he didn't care much about this person, there was no need to provoke him either.
The guy now considered himself Uchiha Fugaku's right-hand man.
"There's no other reason; I'm just practicing 'bodily activation' at home, and didn't want disturbances..."
He didn't hide anything. Such matters were fairly known among ninjas of Chunin rank and above.
Since beginning his 'bodily activation' practice, Toshiro had purposely adjusted his patrol times and often used shadow clones to slack off,
After all, deceiving superiors was familiar territory from his previous life…
As long as he didn't encounter unexpected situations, there wouldn't be any issues.
After all, this was Konoha's stronghold, with its biggest threat being occasional spy captures,
Which meant majority of his time could be devoted to practice.
His current regimen involved fixed meditations each morning; the tedious endurance runs had ceased.
With more efficient training methods, he was finally liberated from endless physical exercises.
His daily regimen now resembled a form of cultivation.
He would split his shadow clones to assist in sage chakra conversion, then personally manage his body's 'activation'.
Daily meditations became an easy way to enhance his power.
Of course, some routine training remained essential...
"Is that so? Never mind..."
"Fugaku-sama has a mission for you. Come with me..."
Without further inquiry, Uchiha Inahika spoke in an official tone after hearing Toshiro's explanation.
(Chapter ends)