I think this Manga is mostly written as a novel. And not a shitty light novel readers cannot immerse themselves in because the "author" has no concept of description and only do bad dialogues around a dozen characters. A honest real novel. Which is great lore-wise but get hard to track when we're drip fed a chapter every other month over years. Novels are supposed to be read over several days or weeks.
I'll have to read everything to remember half of the people and situations they talked about here.