Small review right here, I think this book is amazing, yeah first 40 chaps shows Author's inexperience, but it obviously becomes better, and after 50 chaps it is amazing to read. Good job Author!
Did the MC matured after 40 chaps too? Only minor issues, but it's cringe to see MC acting like a stuttering teenage boy with lots of emotional outbursts. chapter 20 is specially unbearable. *cough* he's supposed to be 40 mentally! christ.