Sayori is a petite, generally rosy cheeked 18-year-old. She has hair fashioned into a chin-length bob, slightly messy due to her disuse of brushing it, having her fringe parted into three separate parts along her forehead. Sayori is initially portrayed as the character archetype of a Genki Girl, expressing a bubbly and cheery disposition. She is very clumsy, noted for finding ways to accidentally hurt herself. She suffers from bad depression and works so hard to make the people around her happy.