Komaru possesses short, dark brown hair and desaturated green eyes. She also sports an ahoge, similar to that of her brother's. When she was in the motivational video with her parents in the first game and its corresponding anime adaption, her hair appeared neater in a classic bob cut, and she did not possess an ahoge. The uniform she wears in this video consists of a white button-up shirt, a brown blazer, a brown skirt, and a red ribbon.