This is a very interesting story, the first chapter does decently well on giving us a short description on how the MC grew but i feel like it could have be done a different way like, Giving us a quick view on the current MC after the training and the MC goes into his past and the next few chapters are about his growth and training then it resumes with the start of the story. But still this has potential for a better story and depth on the characters and Logic.
NOTE FOR CREATOR: i will be watching out for this story so i hope yo u can find a reason to start this story again if you stopped doing this. You got talent for this so don't sell yourself short Man/Girl!