Ok once me and my mom arrived at the forest where my trainer said he will meet us we saw him on a tree.He wore black boots with black shinobi pants and a gray skin tight shirt that showed off his big muscles.And he stood at 6,1 which is tall considering madara was 5,10 during the fourth great shinobi war.And he had brown messy hair .And looked around 27 years old with a goatee.He jumped down once he saw us and looked at me up and down while I just looked at him with a glare as he stared at my mom chest.And my mom cleared her throat and that seemed to bring him back to his senses. And he said oh yeah miss sorry
you can leave I will bring your son back once we are done.And she just smiled and said ok goodbye and walked away.He turned to look at me and said ok my name is Renji and today we will be doing tree walking and water walking.And some basic ninjutsu ok.
I said I already can walk on water and trees.And he said show me so I walked over to a nearby tree and walked up it.And then I ran on the water then he said ok.Then today we will be testing your affinities and some elemental training. Then he took out a paper from his pocket and gave it to me and told me to pour some chakra into it .And the paper split into four parts one turned to dust one caught on fire and the other two crumbled and got wet.His eyes widen and draw drop.
Damon POV:This kid is a prodigy I will have to report this to the clan head.And maybe he will award me for this.
Kakazu Pov: I watched as he closed his mouth and eyes turned back to normal .Then he said good job and then I went on to practice my the substitution jutsu and the shadow clone plus the transformation.which I mastered in one try.
Then I went to do physical training with 160 pound weights on each limb like sprints around the forest and pushups situps and crunches. And 200 squats in 45 minutes .Then I learned the fireball justu with my rinnegan copying it when he wasn't looking and water bullet jutsu,lightning needle sinbon shower,windstyle great breakthrough,earth style earth wall.All within four hours then I worked on fighting Renji which he beat me because I was tired and couldn't use my eyes.Because I wanted to save them as a trump card in dangerous situations. And plus zetsu might be here and the clan head might give me very dangerous missions when I start in the war.
Timeskip a year
In this year he has achieved high chunin speed and strength and in ninjustu and taijutsu.He has low jonnin chakra control.And he also has mastered his rinnegan abilities except controlling other people's bodies. because he hasn't tried it.And his chakra reserves are elite jonnin .He also has made his black rods as fast as kakashi before the fourth war.So he is a pretty strong six year old.Also he has been recognized as a genius by the clan head.He also found the clan head son will inherit the clan in four years.Since the current clan head is sick and past his prime.His clan specializes in taijustu and mostly earth ninjutsu .
He has mastered some C level genjutsu but with his rinnegan it is at B level because his clan is not really known for genjutsu they don't have powerful genjustu.
Timeskip two years
In these two years he has achieved low jonnin without his eyes.With them he is high jounin because he dosen't have battle experience.But tomorrow he will go to the front lines the first shinobi war is still raging on .And right now he is 8 with a lean body and green eyes.With brown hair to his neck plus with a sword on his back.Yes he has picked up kenjutsu he is on low chunin in this aspect.