Interesting story so far. I eagerly await for more chapters. There are sadly not so many good fanfics in this fandom, this one looks to be on the way to becoming one of the great ones!
I especially like the fact that the MC is a history buff. I really want to see snippets of his analisys of Planetos, it's realities, castles, etc. from that point of view.
Main charater's choice of Origins and wishes is really good as well. Few people understand that Cap's serum in medieval settings is already OP on 'man vs man' and even 'man vs squad' level. That misunderstanding sadly leads to some cultivation OP bulls*it wishes which destroy the setting.
Yours however should not detract from it since even knowledge wish only asks for Medieval and Renaissance knowhow, so that's great too.
So, what I'm trying to say is: Author, please, continue this story, post more chapters and never be discouraged! I shall await for more most eagerly!!!
**: On a personal note, couldn't agree more - F*ck the Tully, especially the wonder sister duo. Two dumb bit**es managed to kickstart so much s*it, I swear their childhood friend was soooo proud and happy... On that note, despite the respect his achievements garner, f*ck Littlefinger too. And the Riverlands as a whole while I'm ranting...
PPS: Well, except for Blackfish, that one is badass as all hell.