Wanyi is human, but she's the proprietress of a shop full of demons. Even the slightest frown brings a horde of demons, big and small, rushing to fuss over her. It's a real nuisance. Even more annoying is the guy she tricked into taking over her position: he has the prettiest smile of all, but nothing gets through to him.
What do you do when a kid won't behave? Give them a beating.
If they still won't behave, give them two.
"As a demon, you should have some dignity. Don't you feel ashamed to let humans grind you into the dirt every day?"
"I'm a half-demon. Nothing to be ashamed of."
"..." If you want to beat up a demon, a half-demon will do just fine.
A feel-good power fantasy. The heroine is absurdly strong and loves picking on people; the hero is a good-for-nothing at first, but later joins the heroine in picking on people.
