Musutafu
The Kingdom of Musutafu is a prosperous land where the rich rule and the mages live hidden among past relics.
Previously two separate countries, the land is now ruled by King Todoroki but not everyone is happy about that. His own son is suspicious of his motives and has drawn together a crew to tackle him and the the secret society of alchemists that the man had hired.
This is a BNHA Fantasy AU World