A first-year student in the Standard Course. Nanna bears the zodiac signs of both Pisces and Taurus. During middle school, she stopped being able to raise her voice above a whisper. The source of this disability remains unknown, although it doesn't seem to have been caused by an illness. Despite these issues, she is very sociable and strives to act like a proper lady. She shares her dorm room with Nene and Rebis, who keep her day-to-day lively. These days, with Rebis's help, Nanna is able to throw her whispers at a distance, allowing her to communicate with others more normally. [Translated from the author's Twitter.]