Denial is going to kill. Moreover, bad reading on top of denial is going to ruin this manga for all of us. Here, I will prove that Naruto healed Guy, and I mean it for all the people who want to hear facts from the manga. Before I do that, to all the butthurts, take this:
Shame on you for claiming you read the manga when actually you merely looking at Kishi's art. Yes, you are not reading the manga at all.
Now, I cool, and here is my argument:
(1) Hashirama Senju was who he was because he had Ashura's chakra: (a) He could heal himself without thinking about, (2) His cells could bring Obito's broken ribs, arms, head, etc, (c) having a piece of his meat can boost one's Sharingan to give them EMS durability. Basically, on the black market, one would have to give his own wife before getting a piece of Hashirama.
(2) Naruto has the source of the power that Hashirama had. Not only he has the source, but he is Uzumaki, a clan that have shown to be stronger than all other Senju beside Hashirama. In fact:
Analysis
(1) Naruto's KM chakra was acting on Mokuton. Back then, we argued that the effect on Mokuton did not come from Kyuubi, but from Naruto himself because Kyuubi cannot grow Mokuton when actually his chakra was always eaten by Yamato's mokuton without doing anything. If Kyuubi's chakra alone could give the effect observed, Hashirama would not be able to approach Kyuubi because he would be transformed into a forest.
(2) Fact is that Ashura inherited half of Rikudo, his yang or life force. If you know who Hagormo is, it pretty much means Ashura was immortal as long as you don't obliterate his body. This was demonstrate by the fact that Obito can regenerate an arm or whatever using Hashirama's cell. Tsunade even said that if Madara had Hashirama's cell, then he is immortal - and Obito has confirmed it.
(3) From the above, all the folks should admit that currently, Naruto is immortal and his chakra can revive anyone even their bones. Looking back at Gaara's revival, one can see that Naruto's life force was used by Chyo, and this is why Naruto entered Gaara's consciousness to look for him. Most readers disregards these symbolic illustration that are meant to say
it is Naruto who was bringing Gaara back because all there was to the Jutsus was to transfer life force.
This being said, Guy's skin and bones will be regenerated just as Obito's arms could regenerate using Hashirama (Ashura (Naruto))'s chakra. Folks need to understand this fact and admit it.
From now on, people should know Naruto has the same essence as Hashirama Senju on top of his Minato and Kushina's genetics.
This is so true and weird that Naruto kicked the ball without having a scratch. Knowing that this ball could destroy an edo tensei, one can measure the implication of the power of naruto. Basically, if there is something call death, then Naruto can destroy that thing because he is life.
Finally, if we put all fanboyism and rivality apart, it is easy to see that Kaguya had two children, and one of them had the potential to become (and became) the Rikudo Sennin. It is also reasonable to see that Rikudo's children are the same. Even if Rikudo thought his choice caused the conflict, it is obvious that Ashura has proven to be stronger than Indra. This can be seen in fight such as Hashirama vs Madara or Naruto vs Sasuke. While people thing they are equally matched, it is obvious to see they are not.
In a fight where one is trying to stop destruction while the other is maximizing his firepower to destroy, the least we can say is that the fight is not fair.
Thus, dying along with their brother is a choice made by the Ashura's to keep the balance. Soon or later, Naruto will prove much more mysterious than Sasuke just as Madara could not comprehend why Hashirama was much stronger than him.
Maybe, Sasuke will also still a piece of Naruto, who knows.