Megalomania - Manga
Summary
Set in a future where humans are not the only beings, there are tensions between two races (humans and demihumans called Ajin). Humans of an age before created these demihumans as slaves to their society. But then a war broke out and demihumans were freed from their enslavement though still restricted to lead lowly lives.
Canon Passacagilia, an officer of the East Side's Police Bureau's Special Second Division who are in charge of dealing with crimes related to demihumans. She and her comrades patrols this city's streets helping all they can.
Summary by solitaryCross
... and the second season of the Anime did a better job of pacing than I thought they would. I think they moved the Elf village arc from before hostilities with the Principality began to the inter-war period, aka the start of the second season, and used that to pad it out. Good call if that's what they did. In any event. Good season.