Sousou no Frieren

After the Hero's party defeated the Demon King, magic became widespread, deeply studied, and institutionalized, with spells recorded, traded, and evolved over generations. The world is home to various races — long-lived elves, hard-working dwarves, the numerous and adaptable human race, and remnants of demons who, though intelligent and magically potent, lack human emotions and morality, viewing language as a weapon and peaceful coexistence as fundamentally meaningless.