Katherine, the heiress to the Beaumont family, is mercilessly mocked at her wedding for her plus-size figure, and is further snubbed and disdained by her new husband, Leo. After suffering a humiliating wardrobe malfunction at the banquet that makes her a laughingstock, she resolves to go into seclusion for three months to undergo a stunning transformation. She returns with a breathtaking appearance and a heavenly voice that stuns everyone. Facing the impersonation and relentless schemes of the vicious female supporting character Vivian, Katherine strikes back powerfully with the unwavering support of her formidable parents. When Leo discovers that she is not only the woman from his one-night stand but also the beloved "white moonlight" he has been pining for and searching for over a decade, the proud and arrogant CEO finally embarks on a humble, desperate quest to win his wife back.
