She wears the typical school uniform, which is a warm gray blazer over a brown sweater-vest, and underneath that a white-collared shirt, topped off with a small red ribbon. Her eyes are emerald green Act 3 shows tiny dots in what is supposed to be her colored pupils already surrounding the iris. She also has bangs and two long strands of hair next to her face. Monika has long coral brown hair that she keeps in a ponytail tied back with a cute white bow.
Her character for unknown reasons becomes self aware after having a epiphany, realizing she can not be dated in the game, and starts manipulating the game files in order to drive the player to her.