After giving identification and informing the purpose of their team, they were allowed to enter inside the temple, where they were unconsciously greeted by hostile stares from the disciplines of this temple.
They were used to getting these stares, as Shinobi typically had a terrible reputation amongst commoners outside their village.
Fortunately it was short lived when its top head monk, Chiriku, came to greet, curious to meet his friend's friend after Kakashi gave the guard to show Asuma's blade to Chiriku to further confirm their identity.
While exchanging their pleasantries, Sasuke asked Hinata to use her eyes to see the colour of chakra they had.
Hinata, who was absent minded, came back to her senses, and did what Sasuke instructed, even though the request seemed weird.
'Weird, why do they have 2 sets of chakra?' Hinata thought, as having 2 sets of chakra is extremely rare, so the fact each person who was practicing had two sets of chakra, made her realise there were many things she had left to see like Sasuke suggested.
Such as Rasengan Sasuke taught her, which was offensive ninjutsu yet did not have any chakra nature typically one could expect.
After informing the discovery, Sasuke was pleased and looking for an opportunity to copy ways to manifest it.
In the past, he wasn't able to judge the difference between him and OG Sasuke, and couldn't tell whether OG had access to Indra chakra or not.
However, after learning Rasengan from Kakashi and learning how much chakra it takes to form Chidori, he learned his chakra reserve.
In the OG timeline, OG Sasuke is able to use two Chidori, each consuming roughly 25% less chakra than Rasengan.
He however, couldn't form Rasengan without fainting, and if he used Kurama chakra, he was able to use two Rasengan in succession or simultaneously.
So his chakra reserve without Kurama chakra was half of OG Sasuke, incredibly disappointing but it is what it is.
He had no access to Indra chakra, so he must find a way to grow stronger through other means.
So he hoped the chakra 'Gift of the Hermit Group' was a form of senjutsu chakra.
But he won't be too picky if it is not the case as beggars can't be choosers.
"It seems your young discipline is interested in our teaching." Chiriku commented, noticing how Sasuke was observing his discipline practicing their teachings with interest.
Seeing the opportunity, Sasuke replied:
"I heard from Asuma Sensei monks here that they use a special form of chakra, and I heard there were different levels of it."
He did not lie, Asuma did tell him during conversation when they were 'training', which proved more useful than he expected.
"You are right, there were different levels to it." Chiriku confirmed who mastered the usage of 'Gift of the Hermit Group'.
"How about it, since you are here in the temple, why not show a demonstration to entertain the guests?" Chiriku said with a smile, that did surprise the discipline who was practicing.
Their instructors however did not react, understanding what Chiriku was aiming.
Chiriku was not 'entertaining the guests' because they were friends of Asuma, they were limited even with friendship especially if you are in charge of a significant institution.
He wanted to demonstrate the power of Fire temple to Kakashi, the strongest Jōnin of Konoha as form of non-provocative warning to Konoha not to underestimate them and think they could be better than them just because they had produce legendary talents, had Nine-tail with them and managed to become part of Twelve Guardian and renamed the group as Twelve Guardian Ninja.
Just like how Twelve Guardian Ninja reverted to Twelve Guardian, he aspired to hold Nine-tail Jinchūriki as well since if they were able to control Sora, a pseudo-Jinchūriki, they might be able to control a Jinchūriki.
So he began to manifest the 'Gift of the Hermit Group' while Sasuke was observing with his '2 tomoe Sharingan' and Hinata was observing in her own accord, intrigued by the process.
At first, Hinata saw no change of chakra, however after a few minutes, a part of his chakra began to change into a different form of chakra, identical to one his discipline had.
As time went on, the new chakra grew more prominent than his normal chakta until whole body was flowing with the new chakra where physical, spiritual and natural energies were perfectly balanced where pigment formed on Chiriku's face proved his mastery.
'He faced pigments exactly like one 1st Hokage has when using sage mode.' Sasuke thought, who was trying to hide his excitement.
However he found it fishy and doubted it.
If it really is senjutsu chakra, then how are they able to teach to anyone?
One needs a huge amount of chara reserve to use it and there was risk if disciplines took too much of natural energy unintentionally but that was no case of happening.
And the speed of entering that mode was suspicious even if it took 30 minutes
Moreover, how could the Fire Temple be destroyed by the zombie duo?
Then again he and other fell victims to their hax the same way as two and seven tail Jinchūrik was who obviously is stronger if
zombie duo let them complete their bijuu transformation.
So while showing sincere interest, he waited to get a chance to talk with Hinata who was observing him to understand more about it.
Shino who also was observing through his bugs was amazed until he observed others while Kakashi who saw it, doubted the power and figured that the instructors, who closed their eyes, must have done something about it.
Chakra Transfer Technique was actual jutsu he and others knew and did not need to weave hand signs to perform.
And if the monks were that powerful, Konoha would have been defunt a long time ago.
'Well at least he confirmed that Last Tsunade was at Tanzaku Quarters after taking loans from them a week ago, for the tenth time.'
Chiriku who went back to normal, sighed and hoped it was enough, without realising he exposed his Fire temple secret of how to perform it to Sasuke and failing to impress Kakashi.
Seeing his face, Kakashi smiled, pretending he was impressed so as not to offend Chiriku.