Sayu Hisanuma

久沼 さゆ

A third grade elementary school girl with brown haired pigtails and eyes. She is Miuna's best friend who often instigates confrontations with sea people. [Spoiler] After the time-skip, she entered the same middle school as Hikari and the others. She also decided to be more serious at studying and becoming independent. [/Spoiler] [Spoiler] She has a crush on Kaname. [/Spoiler]