Maika Sakuranomiya (May-Kah Sa-Koo-Rah-No-Mi-Yah) is a 16-year-old girl who despite having a positive and cheerful personality, unintentionally gains a sadistic look in her eyes whenever she smiles. This look catches the attention of Dino, who scouts her to be the "sadistic girl" waitress at café Stile. Despite being told that the customers like being treated badly, her worrying about how she is treating customers gets the better of her, causing her to snap into an apologetic personality as soon as they have left. (taken from Wikipedia)