Oushin Girls' Academy is a respected institution reserved only for wealthy young ladies. Very few of its students excel enough to earn the title of Noble Maiden, awarded to those who embody the ideal Japanese woman of culture and refinement. Lilisa Suzunomiya, a girl of common roots, has suddenly found herself as the daughter of a newly remarried real estate mogul and seeks to become a Noble Maiden to prove that commoners like her can be noble as well.