Futaba Ooki 大木双葉
Her nickname was given by Hikari. Student in Yumegaoka High School Year 1 Class 2. Withdrawn and shy, easily nervous in front of people. She got a moped license and commutes to school via a scooter. She loves to take photographs with her mobile phone and safe-keeping them as precious memories. Joined the diving club through Pikari's invitation.