Mrs Blackness is a 30-year-old supervillain who works at a very spooky all-girls supervillain boarding school. She is always dressed in a black long-sleeved hooded full-body rubber jumpsuit, a pair of black rubber gloves, a pair of black rubber boots, a black supervillain cape and a black mask that hides her entire face. She has the power to darken people's vision, and she can also change day into night instantly. Mrs Blackness has 5 students named Neat Freak, Poisonous Princess, Killer Kitten, Ferocious Fairy and Wrathful Wasp, each with their own appearance and superpowers, and she shares a dorm room with all of them. Ms. Blackness, along with practically everyone else at the school, is very diabolical, evil and scheming. However, she is also very sweet and kind-hearted to her five students.