Wait she kinda looks like the selling guy

Bro is becoming self aware YEAHHHH

Haven't read the novel, but I'm pretty sure she's one of his siblings! She mentioned the youngest and having to buy his robes, and the taiyaki (can't remember how to spell the Korean name for it) seller has a younger sibling who's trying to become a priest. I think she's the eldest, with the taiyaki seller as middle and the priest candidate as the youngest (provided that they have no other siblings)?

WWWWW KES GOOO