The Uchiha - Senju Immortal

My guess was correct; I awakened the famous Sharingan even though I'm someone from the Senju clan, maybe this is my cheat for reincarnating and being on the void for fricking millions of years? I was just about to ask when my father started to talk

''Sigh... my son, I guess it's time to talk about your mother, you know that I'm the brother of our Clan Leader and also the Great Elder of the Senju Clan, right?'' Seeing me nodding, my father continued

''About 10 years ago, our clan was in one of the many wars against our rival, the Uchiha Clan, however, both I and your mother fell in love in the middle of the war but the only fact that she's from a rival clan wouldn't allow us to marry, not to mention that she's the sister of the current Uchiha Clan Leader, we were lucky to be able to hide you from the Uchiha's...''

Now it makes sense, I was just about to ask more when my father interrupted me ''Enough of that for now, when you get stronger and is able to control your own fate, you will meet your mother, we need to test your affinity towards the elements'' he said.

I never thought that there was Chakra Induction Paper on the Era of the Warring States, it's probably a high-end product and probably not cheap, kinda grateful that my father was able to get one ''You only need to inject your chakra on the paper'' my father added.

Feeling the chakra inside me, I injected it and soon, the paper showed reaction as it became damp, then turned to dirt, wrinkled, split in half, one of the sides turned black with a small white circle and the other side had a black circle on the middle. [A/N: I'm not sure what the Yin-Yang affinity is on

''You actually have all of the affinities... this is... very rare! Hahaha, my son is a genius, I knew it from the moment you awakened your Sharingan by just refining your chakra for the first time!'' My father's usually stoic face was now in ecstasy as he talked excitedly.

I didn't need to ask ninjutsu as my father simply took from his shoulder bag the three basic Jutsu: Substitution Jutsu, Body Flicker Jutsu, Clone Jutsu, and Transformation Jutsu, also a guide of Tree Climbing.

A panicked voice came out of our courtyard, yelling ''Great Elder, the Kaguya Clan suddenly attacked and stole some of our mines!''

''WHAT?! Was there any casualties?'' My father asked, shocked about the sudden attack.

''Yes... fifteen clansmen that were guarding the mine were murdered, there's some signs of the Uchiha Clan signature Jutsu, Great Fireball, however, it isn't confirmed yet!'' The voice was calmer now but it still had a hint of panic on it.

My father had to leave to do his duties as the Clan Great Elder and go to investigate these things, I was left alone to train, I felt as if I could absorb more of these strange particles that I identified that it isn't chakra, the reason is that I can feel another person chakra, in this case, my father is the first one that I felt and his chakra is different, it gives me the feeling that his one is inferior, which means these particles and the chakra inside my body is the so-called 'Natural Chakra'

Analyzing the situation and putting my mind to work, I thought of a few possibilities, the first one is that I can absorb Natural Chakra, the second one is that I'm a Sage Body and the third one, a terrifying guess in my opinion: I'm made of Natural Chakra.

I eliminated the first one because unless you're a Sage Body, it's impossible to absorb Natural Chakra as I absorbed then I thought more and came to a conclusion, I'm not a Sage Body because even them cannot absorb Natural Chakra like this, they would either go berserk or create their own Senjutsu, like Hashirama.

The only option is the third: I'm made of Natural Chakra, I'm not sure about my chakra reserves if it is high or low because I don't have anyone to compare but just the fact that I'm made of Natural Chakra is terrifying.

Essentially, I'm the same as the Juubi, that is a being made of Natural Chakra, all I need to do is grow my chakra reserves and train myself; In my past life, I researched about the Perfect Body and failed, however, I was reborn with the literal Perfect Body, one should know that not even the Otsutsuki Clan is made of Natural Chakra, only after they eat the God Tree fruit they were able to use normal chakra, though they are a terrifying race indeed.

Excited about my own discovery right now, I first started with the Transformation Jutsu, reading the scroll, I saw the hand signs and started to do it while guiding my chakra as stated on the scroll, trying to transform in my father, a poof was heard as I... succeeded, of course!

Maybe this is the so-called protagonist aura? No, I shouldn't believe in these things because the only thing that made me succeed in the Jutsu is my own talent, nodding to myself, I started to practice the rest of the Jutsus, more surprisingly, except Tree Climbing, that requires relatively good chakra control, I was able to do all of them in the first try, without errors.

My next step is to train my Chakra Control, hn.