Nonoka Sato plays the role of Azusa Yuuki, the heiress of a major fashion brand who also serves as its image model. Known for her sophisticated urban style and elegant presence, she is admired by many. Her boyfriend, Masahiko, works as an employee at the same brand and once served as a servant in the Yuuki household. Despite their differing social statuses, the two have maintained a secret relationship. Although Masahiko owes a great debt to Azusa's father, he has never dared to ask for his blessing. Meanwhile, Masahiko's twin brother, Tatsuhiko, was banished from the Yuuki family years ago after attempting to assault Azusa. Now, after years of absence, he returns—impersonating his brother—to carry out a vengeful plot. As the truth behind his scheme slowly unravels, the fate of the Yuuki family hangs in the balance.