^I feel like Yashiro exerts some kind of influence that makes others take her presence for granted as one of her supernatural traits. Though I don't think what her deal is will ever be fully explained, her mysteriousness is part of the joke/charm.
It was fun at first as far as I'm concerned, now for me, it's just starting to really really wear off :\ and I don't even think she particularily adds anything to the story, although I was waiting for her to have some kind of importance.
i didn't particularly MIND her til this last chapter. i mean, COME ON who doesn't notice a whole fucking (scuse the language but reading that was really stupid >.>) CHILD in their bag??? and how the hell is she just carrying her around???? i know they mention she's light, but not THAT light, and you CAN'T just hide the angles of her body!! jesus christ lol. it REALLY pulled you out of the amazing mood of that last chapter. really disappointed that was put in there.
She is an alien lol. Guess she can bend her joints however she wants or something like that.