Fave

The gold in their horn gives them a fallen angel vibe, their backstory would consist of why they fell (it was probably for a really stupid reason, due to the heaven in this society being a deranged dystopian kind of vibe where it is basicallyna cult where you must be perfect or you're dammed) only for their halo to be molded into one of their horns, leaving behind some past remnants of their old self leaving them bitter towards the world.