10 years later...
"It's my 5th birthday soon right mother", "yes Aaron it is your 5th birthday soon, we shall throw the most festiv party in all of the kingdom of tats" it has been 5 years since my rebirth and with the memories of my past live on earth and regained memories of this world I have been training. In my original life I was fat and untrained until I awaked at the age of 13, and went through enough training to make a grown man weep.
However now I was probably the strongest 10 year old. When I awaken I will already have my training from my original life to control my powers I just need to level up its power and that for that I need to have it active constantly so that I can increase the power and time I can wealed the power.
The power that gave me the name of most powerful human in the world was called atomizer. It gave me the ability to control atoms, with a lot of constration I could split atoms. I thought that this power made me invincible,however I thought wrong when I walked into the demon gods chambers I noticed the lack of atoms. It was like the deep darkness of space I had no atoms to use against him. I was forced to fight with my bare hands and I had to limit my aura use because of the lack of mana atoms. In the end I had to force the demon god to let his gard down and used my own atoms to seal him away almost completely obliterateing the castle in the process. I just need to wait 3 more years for my awakening and go into secluded training before I'm forced to go to the academy.
I walk back to my room to plan how I'm going to have my reunion with all my friends and realize that I have to go the academy in order to meet them. Soon after I get tackled by a young boy around my age his name was Peter. He was my personal assistant and one of my best friends.