I've read too many stories like this. Quite frankly, even if it is slightly different, with the MC incarnating in slightly later in the story, I am sick of stories like this. Sometimes some might catch my interest and I might enjoy them, but not this one.
The world and the arcs as of ch83 are descriptive and well built. The story pacing is okay. But my main problem is that the Mc for a genius has a brain that isn't functioning most of the time. This is mostly done to hinder the Mc development and standing and getting some suspense into the story. I have no problem with dumb Mc's, I am quite fond of Luffy(One Piece) after all, but I hate it when an author tries to sell me an idiot as a Genius. And he is seemingly only made an idiot to limit his op ability.
I really like this book. There are some spelling/grammar errors but not enough to hinder my reading. I feel a strong connection to the main character when I read the author’s written words. I feel his sadness and anger and hopelessness. It makes me want to somehow reach out and hug him comfortingly. Thanks for making such a heartfelt book author. I look forward to future updates...