Stumbled across this one, and I'm kinda glad I did, the first 3 episodes the animation was kinda wonky 🤔 like a low-budget CGI or something, but after that it cleans up really well because they ditched the cheap CGI
The story, although fictional itself, is based off an actual time period and a way of life, and some characters are based off real people
Give it a shot you'll probably like it, I tend to throw it on when I'm eating a quick meal, or just about a hour before I turn in for the night
At least watch the first 10 episodes to get a feel for it, upon writing this review that's where I am.