>>14266714If I remember right, the idea was that because Sanae is from the outside world she is likely less prude and more open to sex. See our modern society being open about topics like sex, masturbation and so on. I'm not too sure, but I think Sanae did a 180 between MoF and SA, showing later how ditzy she actually is. Then she is the decendant of one of the few characters we know had sex, the "Not being held back by common sense" thing aswell. So that paints the picture of a girl that is easy to get.
In the end the joke runs on itself as Sanae just gets lots of porn in which she is a total slut.
Kaguya is a NEET, but we don't really know if she is the dirty type that doesn't take care of herself and is a shut in.
And we went over the thing that Cirno is smarter than people think a lot. I'd even say she Clownpiece is a lot less intelligent than her. But generally, all fairies aren't very smart, mostly in a carefree way. They don't need to be smart to survive, fairies can't really die.
