She's literally the npc that shows when you enter the inn, when you're speaking to the innkeeper. That image I linked is quite literally from telling her Hiro would climb under her desk to pay for a room. So, sorry. But you either misremember, or the devs just used the same character image for more than one scene.
Checked. Nope. The monster town inn has no character attached at all.
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Mind reading the very first line connected to this npc? "the town's inn". Its the inn in the first town.
Don't try to tell me I'm wrong without bothering to look, yourself.
Edit: Found the copy. She's the item shop owner from the first town, as well.
Went a little farther to see the description they give:
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"An older woman with a vaguely friendly smile". So not a man no matter what, either. I saw a male version of the bj scene I linked above in the java folder, though. So it changes, despite what Gerhumm said.