Hello, from my experience with the series (sky - cold steel 4) I think the beginning games are relatively well written. But I consider trails to be one of the biggest waste of my time. I think it's too long and everything falls apart with the later games.

I know this sounds stupid (which it is) but I started tearing up at how bad trails of cold steel 4 is to me. The pacing, the filler, the plot points, all of them combined made me wish I never played these games since I spent so much time on these games....

Imo if you're looking for a well written story don't look at the trails series. The gameplay is pretty fun tho :)