Mc, just like other reincarnation people regains consciousness in a non-existing, real and non-illusionary place where time and space have no reason and meaning.
"Wtf? " Mc gains consciousness but being reasonable he doesn't have any sense. He starts regaining other memories of his soul and things ' I was useless in this life too, huh?'.
A being known for being non-existent and ever-existing ( this God cannot die because he never existed and he knows all as an ever-existing being before the creation of illusion and reality). Came in front of MC and kept his silence.
Mc felt his presence as God let his presence know through divine existence, and said "What will happen now? How do I end this karma? Or do I have to end this karma?" God, knowing all possibilities and Infinite past, present and future said "It's not a choice given to anyone it will come to you in one way or another. Karma comes when you least expect it."
" Well, I have made a karma with you after this many reincarnations so let's solve it with a deal." Said God, MC asked "A deal?" God seeing a very different and bright possible future said to MC "This time you will go to the world of shinobi or would you say 'Naruto world' ".
Mc asked "Naruto world? I again don't understand how you make these worlds reality" God replied "It's your thoughts that create things, everything you have thought or are going to think has already happened or is going to happen, only In limits of creation, reality and illusion. And the end of the soul is impossible because it was not created, it can only transfer or be sealed."
Mc asked, "Can I get a special ability like sharingan?" God gave a positive reply " Yes you can get it but you will also get the bloodline limit and the curse of hatred and blindness of MS" mc thinking about the pros and cons concluded that it's better to not have sharingan as he can't deal with blindness by getting another sharingan to fuse with and it's not easy to get over the death of loved ones when you have sharingan, mc asked "is anything else possible?" God replied " I can give you all the elements and any more than that and you will have extra karma to deal with"
Mc said, "Karma is all ok but can I get memories of my previous life in this one?"
God said "You will break the rules of reincarnation! It's not like it matters but you will have to reincarnate here forever you can never change to another world " mc accepted, as being in a magical world is better than being in a non-magical world "can I get demon slayer breathing techniques? I always wanted to try that! It looks so cool when powerless people fight with demons with different powers" God said " ok! That was even possible in your previous life if you knew how to practice there was a lot of potential.
" Mc frowned thinking ' I love katana but what if I do and can't use it, my collection of swords was wasted in rust stuck to walls like decorations ' Just as Mc was about to ask for more abilities God stopped him and said " no more! You already have the karma of your previous 20 reincarnations to pay back, you can get chakra up to 1 tails-tailed beast in total after you train.
Your total concentration constant with become senjutsu, I will send someone to complete your senjutsu. You will get consciousness after the age of 3 and your good and bad karma will be counted after the age of 7 which is normal but as you would have memories I'll keep it as you will only have memories and no attachment to the previous life. You will get a bloodline but that will be your physical limit" MC said "Give me information enough so that I can create my techniques!"
God said "Solve your work enough so that we don't have to meet each other again, it's okay to do good or evil but don't be useless, power becomes stagnant and slows the evolution" and then mc was sent to the circle of reincarnation.
Next chapter - Swordsmith?