The Uchiha - Senju Immortal

[Author Note: I'm feeling rather sick and sleepy so if there are any mistake on this chap, just ignore or point it out with paragraph comment, hope you guys enjoy the chap, though, cya]

As my cells were constantly stimulated and my body in pain because of that, I activated the Gravity Seal as instantly, the gravity on my body increased and I felt heavy, with the constant pain, I started to train my body by doing push-ups, sit-ups, squats, running around mountain, punching, and kicking.

The time passed and in the blink of an eye, the day ended as the moon rose on the sky, giving a chilly but comfortable aura, I was still training but already at the end and as I ended, I felt that all of my bones were soft, not on a good way, I used the chakra on my body to activate my regeneration and I felt great as I felt that my strength increase, albeit very little, however, I can indeed feel that the ''barrier'' blocking me from becoming a Kage level ninja became somewhat less.

This routine kept going for a week as Madara came near me ''Nii-san, nii-san, I did it, I used Chidori, but my chakra was exhaus-'' before he could complete what he said, Madara fell unconscious, his physical strength wasn't exhausted so it was just because he was too tired.

Hashirama felt he lost and came near me with a dejected expression while saying ''Nii-san, can't you point how to learn Rasengan, please? Madara already learned the Chidori but I'm still stuck on the second step...''

Smiling, I shook my head and replied ''Don't worry, Hashirama. you see, the hand signs are used to make things easier, Rasengan is a pure mass of chakra condensed in a sphere, rotating continuously, I know that what you lack is Chakra Control, you just need to train it and you'll probably succeed, Rasengan doesn't use hand signs so it will be much harder to learn, just don't give up!''

His eyes shone as sparkles appeared around him, I even wonder how that's possible but then I thought that using chakra is something that should have been impossible and how throwing fire from the mouth doesn't make sense to ordinary humans from my previous world so I just shrugged my shoulders.

Putting Madara to lay down on the grass in a comfortable manner, I concentrated on my training again, it was boring stuff but important since I needed to get stronger, at least, as long as I'm at Kage level Ninja, I'll be able to protect myself and those I care, as long as someone above Kage level ninja doesn't come like future Madara and Hashirama.

I judged the strength levels of Kage level ninja like that: Ordinary Kage and Peak Kage, above that is Super Kage, which only Madara and Hashirama ever achieved, above Super Kage is Six Paths level, however, even Super Kage is still far away from me, someone at this level can take out a Bijuu without many problems, I'm just near Ordinary Kage, after all.

Madara woke up and smiled provocatively to Hashirama, that simply ignored him as he thought that since his jutsu is much harder to learn, his talent doesn't lose to Madara at all, smiling, he continued to train with the required items.

Since Madara had finished training Chidori, I put a pause on my own and started to guide what he had doubt at, it was principally at Kenjutsu, which was kinda easy to point him, though his battle experience and instincts are indeed quite good, it still can't compare with their original selves that went through war, however, I can hone their fighting experience slowly.

I started to think and analyzed things, if I had to put Hashirama and Madara talent, they're on the same level as Naruto and Sasuke, no, slightly better, however, their feats were much higher, truth to be told, Hashirama and Madara never used external powers to become at the peak a mortal ninja can achieve, except the latter that got Hashirama cells.

Different from Naruto and Sasuke, that relied on getting half of Hagoromo chakra each, thus advancing to a Six Paths level ninja, anyway, this is far away from me since there's a good time before they are even born, haha.

By the way, I'm missing Mito but don't get me wrong, I only like her as a friend, I don't want the FBI to chase me, these dudes probably can work through dimensions and realities, who knows if someday they will come to the Uchiha or Senju Village and say ''We're chasing a lolicon, don't resist or we will have to use force!''

Something like that, anyway, I think I'll visit the Uzumaki Village as soon as I become a Kage level ninja, at least that way, I will be able to freely go there, shaking my head, I started to train once again.