In Naruto as Tenzo Yamato

" What do you mean that I am dead and will be reincarnated, and why should I be reincarnated into Naruto world" asked the young man towards a being he could not see or interpret.

A few minutes ago he was doing his job as usual when he collapsed with a heart attack and now this being wanted him to be reincarnated to an even more dangerous world, why?

" Such are the rules young man, although I am not allowed to lie to you, I also don't have to give you all the answers, your destination has been chosen there is no changing it, all I can do is grant you three wishes" as said the illusory being.

" Fine, I want to be reincarnated as Naruto and I want a system"

"That's not possible I can however give you a bloodline that's descendants from the Sage of Six paths, and as for systems forget it, at best I can give you a way to exchange for some knowledge you might need so choose what knowledge you want."

" Fine, I want biology".

" Done".

Everyone knows that Naruto was a world where bloodlines held all the advantages, most normal ninjas could at best become Jonins.

Some might say Jiraiya, Orochimaru and others became Kage, yeah good for them, geniuses. Besides at one point no human could use chakra, the origin of all was still connected to Kaguya hime and her sons.

Most ninjas now have a thin bloodline of the Otsutsuki anyways however, the concentrated ones with a decent bloodlines were called clans, when the being said he would have a bloodline connected to the Sage of Six paths he knew he would be born into either Senju, Uzumaki, Hyuga, Uchiha or Kaguya, and worst of all except the Hyuga the rest had no good endings in Naruto.

In his opinion he would be willing to be branch member of Hyuga if he was given a choice, if he were alive then there were many possibilities and many things could be done.

If he were to be in any other clans it was likely he would be born pretty early into Konoha's birth, the worst combination would be being an Uchiha after the Kyuubi rebellion, he might as well be a vegetable on the side or join the Root for safety, Danzo would die pretty soon anyway. He could wait a decade or so.

This was all under the assumption that he would be an ordinary genius.

" Alright, I want to be able use to a skill like Kamui".

" I can give you a watered down version, you can enter a space belonging only to you from anywhere in that Universe but when you exits you will be in the same spot as you were when you left"

"Very well then, prepare yourself to be reincarnated".

The boy closed his eyes as he felt weird and weary as the reincarnation began, it was over in an instant for the kid but he was doubtful if time even flowed in the place that he was, according to what he knew time was still at faster than light speeds.

What was an eternity for a normal human on Earth passed as the boy opened his eyes in a liquid solution.

'Water no, this is some kind of nutrient solution, this is the body of a child, this cannot be good damn it'.

Notice, Orochimaru is out of the village of Konoha, Root members will arrive to collect corpses in 35 minutes, your nutrient pod has been unlocked.

' Damn, as I thought I am a lab specimen of Orochimaru's, that being promised to give me a bloodline of the Sage of Six paths, it's obvious he cheated me, they must be enjoying my misery'

He looked through the greenish solution and saw his reflection in the glass pod. He was kid with a rectangular face and brown hair, he was Yamato.

'Damn, where is my knowledge exchange system, what's the price of knowledge'

The boy concentrated his mind and found a tool he could use as the words appeared in his mind, compared to fancy apps and such his system was like a simple Linux based command lines.

Happiness exchange system.

Basic Biology cost : 1 Happiness Point

Unlock basic Biology to acess higher knowledge

Current Points: 1

You can gain Happiness points by being happy.

' Fucking hell, exchange happiness for knowledge, happiness points ? I am lab rat that's about to be inducted into root and later Konoha, when am I going to be happy, useless crap'

The boy opened the nutrient pod from the top as he exited the solution.