Chapter 19: Perceiving Surrounding Objects
Kaito then examined the sealing tag placed before him. The seal formula was inscribed onto a square piece of specialized paper. He thought curiously:
There's only one tag? I assumed there would be four or more separate seals for various body parts—like individual ones for each limb.
Kaito guessed this particular seal must be considerably more advanced than he'd anticipated.
He sighed internally. Well, that means I won't be able to study and analyze this sealing formula properly.
However, it was definitely preferable for him to apply the seal himself rather than having someone else place it on his body.
This way, he wouldn't create opportunities for potential sabotage or tampering.
On the other hand, it also meant he wouldn't be able to learn more about advanced Fuinjutsu techniques from observing its application.
He looked up at the Hokage and asked politely, "Hokage-sama, how exactly do I use this seal tag?"
Hiruzen replied, "Simply place the seal tag against your chest. It should automatically adhere to your skin and clothing. The seal is reusable and designed for long-term wear, so you can remove or reapply it as needed throughout your training. But never give this seal to anyone else under any circumstances, understood?"
Kaito replied respectfully, "Yes, Hokage-sama. But how do I increase or decrease the gravitational pressure the seal generates? And what's the maximum resistance it can produce?"
Hiruzen chuckled warmly, looking at the curious young shinobi before him. He explained:
"Just focus your chakra on the seal tag itself, similar to how you practice concentrating chakra on leaves during control exercises. Then you can mentally decide how much pressure to increase or decrease, and the seal will adjust automatically. As for the maximum resistance it can apply—it's equivalent to wearing a 100-kilogram weighted vest on your torso, with 50 kilograms of resistance on each leg, and 25 kilograms on each arm."
Kaito was genuinely shocked by these extreme numbers. He almost cursed aloud.
Damn! You should have mentioned that first!
But he maintained perfect emotional control.
To continue his act convincingly, he swallowed nervously, allowing a hint of apprehension to show on his face.
Hiruzen observed Kaito's reaction and chuckled inwardly, thinking, Good. This way he'll use this seal extremely carefully and won't accidentally injure himself through recklessness.
Afterward, Hiruzen and Kaito conversed for some time longer.
The Hokage tried to understand Kaito's motivations for requesting these training seals.
He also inquired about his daily life—whether his living arrangements were comfortable, if he was eating properly and maintaining adequate nutrition, and similar welfare concerns.
He also had Kaito practice controlling the seal's pressure right there in the office, directly supervising him. Hiruzen explained various tips and critical safety precautions.
For example, he emphasized that Kaito must completely deactivate the seal before sleeping.
He also warned Kaito firmly against using the seal during sparring sessions or actual combat, explaining:
"If you become too accustomed to fighting under resistance, then when you deactivate the seal in real situations, you'll find it extremely difficult to properly control your enhanced speed and strength. You could accidentally injure teammates or misjudge distances."
Finally, he praised Kaito's excellent performance on the final exams and dismissed him.
After departing, Kaito thought to himself:
250 kilograms total... I genuinely wonder if anyone can actually utilize its full capacity. I'm also curious how much weight Rock Lee carried in the original series. That specific number was never mentioned in the manga or anime.
As he left the Hokage's office, Kaito had already activated the seal at a minimal setting.
In front of Hiruzen, he'd kept the pressure at an extremely low, barely noticeable level.
However, immediately after leaving the Hokage Tower, he increased the resistance substantially.
He adjusted it to a level that was quite physically stressful but still bearable for extended periods.
He jogged all the way home, thinking, Now even such a simple run feels challenging!
However, to properly complete the training regimen Genki had designed, he might need to reduce the pressure slightly.
Kaito decided he'd need to experiment for several days to determine the optimal resistance level.
This way, he'd know the exact percentage of maximum pressure being applied by the seal, and he could also accurately track his physical progress over time.
He also carefully reviewed everything Hiruzen had told him, paying special attention to two specific warnings.
The Hokage had explicitly stated not to use the seal during sleep or combat.
Kaito thought that adhering to the first rule would be easy enough. As for the second restriction, he could understand Hiruzen's perspective and concerns about safety.
But if he only trained with the seal and never fought with it active, removing the resistance during actual combat would create serious problems.
Of course, these adaptation issues could be overcome with sufficient practice, but in the middle of life-or-death combat, such disorientation could prove fatal.
However, Kaguya Otsutsuki did possess a high-gravity dimension among her various spaces.
So Kaito felt he should eventually learn to fight effectively even under extreme gravitational pressure.
But there was no urgent need to pursue that now.
Perhaps later he could construct or locate a gravity training chamber and practice combat there.
That approach might prove more effective for such specialized training.
Additionally, Kaito had to admit this seal was genuinely impressive in its design.
It applied distributed pressure across his entire body. The resistance on his legs was proportionally greater than on his arms. Even his back and core could feel the constant strain.
Kaito deduced that this seal's methodology ensured every muscle group received appropriate exercise.
This would promote balanced physical development throughout his entire body. There would be no situation where certain muscles became overdeveloped while others remained undertrained—a common problem with traditional weighted equipment.
He suspected Hiruzen had also omitted certain technical details, not expecting a seven-year-old to fully comprehend them.
This sealing method was considerably more advanced than the simple weighted training Rock Lee had used.
Kaito thought he genuinely needed to thank Genki for suggesting this reward.
However, this also made him curious why the village didn't provide these training seals to every Konoha shinobi as standard equipment.
Was it genuinely that difficult and expensive to produce?
Setting aside those thoughts, Kaito settled down and entered meditation.
Over the following days, Kaito experimented extensively with different pressure levels from the seal.
He also turned seven years old during this period.
It took him four days of careful testing to determine how much resistance he could withstand while still completing his exercise routine properly.
The optimal level was slightly above 2% of the seal's maximum capacity.
He thought with mild disappointment, That's quite low! But I'm only seven years old currently. At least my physical development should accelerate significantly now with this constant resistance training.
His Sensor-type training also continued daily.
It took him eight full days to finally achieve his first successful detection of objects around him using only chakra sensing.
Yamanaka Shin was somewhat disappointed with this progress rate. He sighed, thinking:
Eight days... while not terrible, it isn't particularly impressive either. He might not become an exceptional Sensor-type.
With continued dedicated effort, Kaito might develop into a moderately competent Sensor-type. This level would be slightly better than the average proficiency of other non-clan Sensor-types in Konoha.
But compared to the Yamanaka clan's specialized sensors, it remained notably lacking.
On average, Yamanaka clan members could sense training objects by the seventh day, and particularly talented individuals achieved it even faster.
However, Konoha was currently experiencing a severe shortage of Sensor-type personnel.
Due to the presence of the Hyuga with their Byakugan, the Aburame with their insects, and the Inuzuka with their ninken companions, the village had historically not invested heavily in training dedicated Sensor-types.
Most of Konoha's actual Sensor Corps members came from the Yamanaka clan.
Having even an average Sensor-type available would still significantly benefit the village's capabilities.
Afterward, Yamanaka Shin repositioned the chakra-infused objects farther from Kaito's location, placing them 4-5 meters away.
Since the fundamental detection technique remained the same and the objects were still within his natural chakra field radius, Kaito successfully sensed them in less than half an hour.
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