If there isn't any mention of genderswapping by the artist, then the default for the series should be that they’re both female. Miki (the dark haired one) is looking rather androgynous in this though.
well I mean the story is about a boy that gets turned into a girl..but in the end it turns out he was tricked and was a girl all along and just dressed as a boy before. So would she be considered a trap when he dressed as a boy and thus trap always? Or the fact the fact that she thinks shes a boy and dresses like a girl anyway make it a reverse trap?