Monika has thigh length coral brown hair that she keeps tied up in a high ponytail that is tied back with a large white bow, curled slightly at the ends. Like the other female characters, she has two prominent strands of hair beside her bangs that reach slightly past her chest. Her eyes are emerald green. She is of average height and believed to be the second tallest character behind either Yuri.

She wears the standard issue female school uniform consisting of a warm gray blazer fully buttoned.