This one is good. I want there to be more elaboration about the MC's past (or future?) life though. We only know that he was a villager because he mentioned it one or two times and he read the poem/history book about the succession battle in which he trapped into. However, we don't know how did he acquire the book in the first place. Were 300 years ago peasant illiterate? How about during the previous life? He was a villager yet he read the book. Why did he read the book in the first place? It didn't seem like he had passion in history either, lest he would make all sorts of references, connections, analogies to the history before and after the succession battle (or it was simply the author's shortcomings). The idea of MC being a history geek and using all of his knowledge and analyses to navigate the conflict would be interesting. There's no need to make him a genius, just a person who had above-average knowledge
The idea of MC just being a regular villager who likes to read and had access to few books in the church is fine either. It's just that there should be more in the MC than someone who knows about the future. Maybe he was a florist, or even boring-ass farmer. For example, if it were me, my lazy ass wouldn't just try to survive, but also try to secure a laid-back and lazy life and always look for a chance for a nap cuz I need a 5 mins nap every 3 hours else my brain would overheat. It's practically mandatory since I'd just drop dead in class without me being aware lol. The only time I could be fully awake for long period of time is when I'm riding my bike since it's related to my survival and I'd be dead a long time otherwise. Anyway, even something as simple as being good at climbing tree like in a certain villainess series would make this even better