Mayu Hazuki is the descendant of Hazuki Ichinosuke, the originator of Hazuki-style Sword Arts. When Mayu was a child, she appeared on a television show for children, but a traumatic event prompted her to stay away from the entertainment industry for the past four years. However, when movie director Iwasawa asks her to supervise a sword fight sequence, Mayu is given a chance to step back into the limelight. The manga also contains two additional stories: "Spring Game" and "Milk Problem".