Is that character supposed to be cute?
I find her both aggravating and boring at the same time.
I kinda hope that they reveal that she actually has a genetic disease that keeps her stuck at two or three years old mentally.
Being that dumb is a bit too caricatural for my taste.
I won't drop this manga because of this (I kinda love the rest of the cast), but I might pause it for a while hoping she disappears.