Oko has messy dark blue hair. His eyes are light purple. There is a shadow on the top half of his face. He wears the default uniform with spider web arm warmers. He also wears the armband of leadership due to being the Occult Club leader. Oko is a stalker, but not a yandere, as he is too shy to harm others. His mannerisms are meant to make him look shy, timid, and socially awkward. He has been obsessed with anything paranormal since early childhood.