IS SHUT A HE OR A SHE?

I've launched a poll on my Face among Pretty Cure fans to guess Shut's gender, which will be revealed within a fortnight.
I have the still uncertain suspicion that Shut is a he.
But will this guess be right?

Shut up!!! (get the pun?)

And you, reader: does Shut look more like a real lady or like a drag queen to you?