Kiriko has violet eyes and light magenta hair, with part of the latter styled into a pair of small buns. She wears the standard dress shirt of Hope's Peak Academy and a dark gray/black skirt with white undergarments. She also wears a red headband with a bow on top of her head. Kiriko is seen to be scared and quite silent during the beginning of the killing game, though still appearing relatively calm. Later, she is shown screaming and running towards Sōsuke as she tries to kill him, presumably acting out of panic, desperation, and despair.