I guess I could've added an option where you smack Ai making her decide not to help you, then The Demon wins having nobody to oppose him. Okay, maybe that's a little too glib, but the idea is the hero really doesn't have much choice: would you rather just deal with Ai's antics and take out The Demon or not and lose any chance of it. Ai isn't the kind to help someone who smacks her. That's my thought process anywayYou can do humiliation without making it unrealistic, someone who is assertive enough to challenge the Demon King, is going to be assertive enough to smack a brat who tries to pee on them 5 minutes after they meet