Phew, this one has been a long time coming.
Swift is my first anthro OC and, despite using him for pervy purposes, I have been developing a whole setting around him. He's quite the anti-hero, as you can get from his description. For context, "racism" against bestiae/four legs is overwhelmingly common in canon, especially on the borders where he was raised.

A word on Simir: while two-legs, commonly known as "two", or "2", usually reproduce within members of the closest species, Simirs are an exception as they present characteristic both from birds and rodents. They can breed with the later and give birth to fertile children. Those mysterious hybrids are seen as masters of arts and elegance, and are seen in company of the elite and the head of Church.

Swift had the misfortune of being born poor from a half-Simir mother in the city of Noastrée, a distant colony where prejudice reigns. He had a rough time growing up and it's only the "ideals" of 2 supremacists that made him feel like he could fit in.