This is Ruby, my fursona!
Neilix are minor shapeshifters; they can shift to hide or show their wings but they can also shift their sex. While some Neilix are content with one body and sex, many take a more fluid interpretation to their existence, some literally shifting gender and sex with their mood.
Ruby is a bounty hunter. Publicly, they are employed by the royal family as one of their personal guards, but Ruby's actual purpose is to root out plots against the country and prevent assassination attempts on the royals. They do sometimes take contracts on the side, but their first duty is to the court.
The clothes chibis are from a base by lockworkorange!