Coworkers Yui Mitsuya and Masugu Tateishi are the last people anyone would expect to get along—especially with their constant office quarrels. However, looks can be deceiving: they are actually dating! Afraid to lose the peace of their professional lives, Yui and Masugu play up their discord even more to ensure nobody discovers their secret. As awkward situations and close calls pile up, the risk of Yui and Masugu's coworkers catching on increases. Keeping up the pretense is not easy, but with each new day, their relationship only grows stronger.

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. The most difficult challenge Lilisa has faced in pursuit of this goal is abandoning her love of rock music to keep up the rich girl facade she must now wear. But her resolve crumbles once she happens upon Otoha Kurogane, the daughter of a prominent politician, skillfully playing the drums while rocking out in an abandoned school building. Despite initially being at odds, they embrace their passion for music together while leading a double life.