Geraldine Tissue is a rich, snobby, and perfectly groomed student who detests dirt and disorder. She is the mastermind of multiple villainous plots, using her family’s immense wealth and her own social influence to get what she wants. And what she wants is to take over the entire school and turn it into a perfectly pristine theme park for herself.

Unlike a typical bully, Geraldine is a master manipulator who never gets her own hands dirty. She convinces others, like Mervin Snibb, to carry out her schemes. Her plans are always “perfect” and “precise,” and fail in spectacularly humiliating ways, especially because she hates dirt and chaos.