Kikko Hoshino
A young middle-schooler in her mid-teens. She works as a waitress, but is, in reality, a “sorceress.” She can summon powers that defy the very laws of physics, and takes on difficult cases. She has a crush on Jiro.
It is later revealed in episode 11 that she is the heir to the throne of the Demon Realm and that she is in the current realm looking for a spouse.