@
Shyning
Character development and excessive backstory exposition are two different things. I love lore, I am addicted to mythology and the likes, but I know what excessive exposition is when I see it.
Also, world building and character development are separated things, the autor is trying to mix them together and, to be honest, I like the MC, I like the world so far, but I don't need backstory on every NPC that shows up. Even One Piece knows that you shouldn't just throw every character backstory at the same time. They need an arc, development, some interaction and I know that real life ain't gonna follow a recipe and sometimes you just happen to meet people too fast, but, that priest girl, she just popped up and had some flashbacks, traded a few lines and she is out. She will probably be back, but why not explore more her time now?
MC, ok.
World, ok.
NPCs, fine so far.
flashback, Naruto's anime level.