I don't like some things in fanfic, but who has ever written something that everyone likes? so I won't specify, but one thing I like a lot about all fics is a different approach and that there's no harem.
I use google traudor, so I don't know if your grammar is good because it fixes some mistakes by itself when translating, I'll be giving 5 stars for being able to read normally without guessing words ^^.
the update is a little slow, but i think it's just a hobby to write this fic the finnal is studying medicine ne, so 5 stars.
I thought the development of the story was good, mainly because I didn't mess around to resolve matters or let them resolve themselves to follow the original error, 5 stars.
I like the character, he's not afraid to use what he knows and not to offend anyone, he does what he wants, he doesn't find excuses for not acting as he wants, 5 stars.
It's the world of ice and fire so far, I only watched GOT, but it was poorly explored, after all it's a series, so far you've been exploring the world well and expanding. 5 star.
this is my most sincere evaluation, I hope I don't offend anyone, but everyone has a taste, I don't expect you to agree with me, but if you think I said something wrong, just comment and we can discuss ^^.
(Google translator)