That could be true but then again some of the demons don't care for dressing in their assigned uniforms, like how Opera and Kalego had half-and-half uniforms, but I wouldn't mind Beem being a girl since they'd be invited to the next tea party
Hmm, for the characters that could pass up as either guy or girl, I think I’m only convinced they’re a girl if they said it or they become part of the tea party with Clara and the others for girl talk just as the previous commenter said xD
I think BEEM is a girl and not a boy, if you can observe her uniform it has the same design as sylvia's.