After collapsing from overeating, she suddenly remembers her past life as a righteous, Taekwondo-trained child with a fierce sense of justice. Faced with the daunting realization that she is destined to save the world, she decides to start her mission locally—by teaching the bratty noble children some manners! When a bully mocks her for being too small to do anything, she doesn't hesitate to deliver a high-flying kick straight from her martial arts training. Armed with both unyielding etiquette and sheer physical power, she proves that you should never underestimate a disciplined kid who isn't afraid to use a little force to keep the peace!