Another idea for you.
What if the King of Molmol was like
a certain member of the House of Windsor?
Can you not see the humour in him visiting the Inn and asking all sorts of awkward questions?
King Su> So you're this "ronin", eh? Well, where's your sword? Aren't you supposed to be wandering the countryside looking for work?
Keitaro> ....
King Su> Ah, you're that Naru person, who keeps beating up Keitaro. I've always wanted to know what's it like to be a man-hating lesbian. What's your stance on dildos? I mean you gave up the cock, so surely you shouldn't be using them on principle.
Naru> *Blushing furiously* I-I'm not a lesbian!
King Su> Oh. Never mind then.