We're halfway through the series and the boys have barely made a dent in Sunako's impenetrable shield of unattractiveness. They KNOW there's a beautiful girl in there someplace; she's just not going to come out without a fight!
Still, there are hints of hope. After all, Sunako HAS inexplicably managed to bond with Noi, the most beautiful girl in the school, despite the fact that the latter has kidnapped her one or two times. And, maybe... just maybe... the guys are starting to get a little feeling as to what it's like for people who're not a beautiful as they are... Well, a little teeny tiny bit perhaps.
It's almost as if Auntie ways really trying to change ALL of them by bringing them together... or more likely, it's all just an incredible coincidence!