Nana seems short-tempered, impatient, and somewhat tomboyish, much unlike her twin sister, Momo. But underneath her brash, overactive, and angry behavior, Nana is actually very kind, helpful, cheerful, and even adorable. She has an open, sincere, and somewhat childlike side that cherishes her friendship very much, which also makes her easily heartbroken when those relations were ever lost or betrayed, such as with Mea, whom she considers her first true and intimate friend.