In a world where anthropomorphic animals live together in a civilized society, you'd read about the gene X-12 in history books of this world : a gene responsible for human-like intelligence, conscience and anthropomorphism, that certain animals have developed through the process of natural selection, over time and evolution. An advanced society has developed through time and a city has emerged that is now called Oxan. This society is divided in two main categories : herbivores and carnivores. X-12 has given intelligence but has not erased natural instincts, therefore this society has evolved in ways led by division, since one of the two categories needs to eat the other one to survive.
In Oxan, Azuki, a 27 years old okapi works in a coffee shop, where she eventually meets Milo, a 29 years old panther. Azuki is a herbivore and endangered, she should keep her distances with carnivores like Milo, because they're can't be trusted. But Milo doesn't behave like a normal carnivore would, and that intrigues Azuki.
Psychological and sociological themes are up front in this story, like instincts, human (anthropomorphic animals) nature, discrimination, division, traumas, mental health, etc. I also like to explore dichotomous themes, like right and wrong and gray zones.
From something beyond his control, Izuku Midoriya was treated like a plague in the world
Having so much anger for the Heroes and the society who treat the innocents like shit attracted The Radio Demon, Alastor who offer Izuku powers and became a Powerful Overlord know as The Green Demon