Nino has an outgoing personality and is socially aware, resulting in her having many friends and is a social butterfly. She has a sharp tongue and talks bluntly when confronting others, even to her sisters. Her rebellious attitude makes her the least cooperative girl among the sisters, making her archetype resemble that of a "tsundere". Despite the cold and rude front, Nino is caring and protective. Her interests seem to lie more on romance than anything else.