Though Yujiro borrowed money for a new house from Hiramasu, it was not his only option.
For example one of his other choices would have been to get a loan from the Hyuga clan.
Though this would not be the ideal choice due to the nature of the loan they would have given him would have had a high interest, in comparison to the 0% interest loan Hiramasu gave him.
After he sorted out the loan, another topic popped up on his mind.
"Hey sensei, do you know what's up with those people who refill the senbons in the dodging room?
Do they spy on me or something, since every time I leave for a moment and come back, the senbon launchers are fully loaded?"
When Hiramasu heard this, he could not help but laugh.
"Bwhahahaa, haa haa, sorry just imagining it gave me a good laugh.
But you have misunderstood, the up keepers of the tower are not responsible for up keeping of the training rooms. And they are definitely not spying on your training."
When Yujiro heard Hiramasu deny his assumptions, he became confused for a second.
But he quickly recovered and asked a question.
"Since they don't refill them, then who does?"
Unlike any of the theories Yujiro had about the mysterious refilling of the senbon launchers.
The question he heard coming from Hiramasu's mouth surprised him.
"Do you know what the summoning contract is?"
When Hiramasu said this, he immediately had an idea on what it could be.
So he answered his theories and the answer to Hiramasu's question.
"The summoning contract is an advanced fuinjutsu technique, that allows a person to form a contract between the two parties, that either allows mutual or unilateral summoning of the other party.
The focus of the summoning can either be a person, animal or even an object.
That's my knowledge of the summoning contract."
When Hiramasu heard Yujiro talk about the summoning contract like he was reading it from a scroll, he could not help but think.
'Seriously this brat! How much does he love reading? If I wasn't their sensei, I'd think that he was a pure bookworm.'
But before he could comment out loud, due to the hint he had given Yujiro himself vocalized his new theory.
"Do summoning beasts help with the cleaning and the refilling of the launchers, or are there summoning contracts engraving in the senbons themselves, which allows the immediately summoning of every senbon to their launchers, allowing instant refilling of the launchers at the cost of chakra?"
Now it was actually Hiramasu's turn to be surprised.
Though he didn't show it on his face, he still gave an answer.
"You're half right. But the reason is not because of what you think.
The reason is simply because some wooden senbon used in this exercise, are eventually damaged.
And when that happens they are replaced.
So instead of immediately refilling the senbon launchers with potentially damaged senbon.
They are first summoned to a different place, where they are sorted before being summoned to the launchers.
So instead of summoning the once, they are summoned twice, preventing damaged senbons from being loaded to the machine.
But your theory was very accurate, from the little knowledge and experience you have."
In response to Hiramasu's explanation Yujiro asked a question.
"But with this method, isn't the Chakra cost increased by a huge margin, since you need to summon them twice?
Hiramasu gave a very straightforward answer to this.
"Not really, since they are inanimate objects without chakra, the cost in summoning them is extremely low in the first place."
From this Yujiro understood, and didn't have any more questions.
It's a little while later that Hyori and Mujin came to Yujiro's side.
But this was due to the fact that more people were showing up.
And just a little while later, Hiruzen showed up.
As he looked down, he nodded with a smile.
And like this he coughed to silence the few who were still whispering.
*Cough
Like in the original series Hiruzen explained to the genin participants that, the chunin exams, were a method for nations to display their strength to other nations, as a substitute for war.
Although Yujiro didn't pay much attention to the speech, he still looked like he was, but what was really going on in his mind was.
'Hiruzen is showing off alot of his chakra I see, though I don't know how much chakra he actually has, the fact that he can casually keep that much chakra circulating without any problem, means that his reserves are atleast higher than senseis.
And the difference should not be small after all, the strength he was hyped to have by Orochimaru was not small.'
After making such a judgement, he thought of the reason for this.
'Though it makes sense. As in the original series, the times he showed off his strength we far and few between.
First is the nine tails rampage. Where his only achievement was pushing the Nine tails out of the village.
Though it's arguable that that was an ability of the monkey king Emma and not Hiruzen Sarutobi's.
The second time, was when he was already at over 70 years old, and far beyond his prime.
In that battle, although it was a bit lackluster, with him playing around with ceiling tiles, but he did beat all three of Tobirama, Hashirama and Orochimaru, although Hashirama and Tobirama were both weakened by the impure reincarnation.
But they shouldn't have been too far from S rank ninjas.
And even then he managed to take down both Hashirama and Tobirama while injuring Orochimaru.
Though that too was because Orochimaru was unaware of the reaper death seal.
So we didn't really have a chance to see him at his prime, only as an weakened old man far beyond his prime.
And considering he could lead Konoha through the times of the third Raikage and tsukikage, it's reasonable to assume that his strength wasn't that far off from them, if not equal to them.
But at the very least, he was far more lethal in a battlefield, in comparison to either of them.
After all, both the Third Raikage and tsukikage both Focused on single target lethality unlike hiruzen.'
Though Yujiro was speculating on the streng Hiruzen possessed nothing could be seen from his expression.
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