Undecided

Need professional review for a novel I have in mind

So I have this story in mind where the boy is transfer to another world based on the various isekai anime i have seen i have decided to write my own. So the boy who is the mc of the novel has a tragic past and after being transported to a new world he doesn't trust anyone and become cold hearted with a lot of trust issue And train himself to a point he is no longer a human with op abilities.