One of Teru's classmates and friends, Haruka acts as the leader of sorts in Teru's group of friends and encourages Teru's relationship with Kurosaki. She is the first friend that Teru confides in with her knowledge that she is aware that Kurosaki and DAISY are the same person. Haruka is frequently the first to come to Teru's defense at school, often leading their other friends to join suit. She is a member of the school's art club, track team, and ghost club.