>>149701055
>Chapter one doesn't have the best translation, so you should starter with this scan, but then shift over to this one around chapter 156, then to this one around 439. Also, be sure to watch this movie since it's canon, but not that movie since it isn't, and you can watch those movies if you want to because they might be cannon. Also there's a light novel that gives extra info about these characters during this period of time that you NEED to read in order to understand everything that comes after. Also they did a retcon of this fact, but you won't learn about it until chapter 59, I wanted to let you know since they don't really explain it and it's confusing to first time readers.
Anything that goes on for a sufficiently long time becomes needlessly convoluted. We're watching it happen to manga right now, and there's no cope in the world that can save you from it weeb.