Lucy is a cheerful and considerate young girl who always looks after her friends. One day, while attempting to save a friend from some bullies, she inadvertently awakens her ninja powers. Alarmed and overwhelmed at her newly realized abilities, she attempts to hide them by avoiding people and shutting down emotionally. However, when another incident occurs, Lucy once again re-awakens her shinobi abilities and must come to grips with her newfound power.