Rigor is a young demon woman (mid 20's), mature at times but usually informal. Due to not being born into royalty, she acts more lax and easygoing in the public. She is protective over those she cares about, making her the mom friend. Although she tries to be the mature one, she can still get pushed to anger. Rigor prefers playing her instruments than violence but she will fight if need be. It's a bit embarrassing but you can bribe her with human world things like stones, incense, and music related things.