After unexpectedly becoming the target of possession, I realize I might just be a supporting character in this peculiar tale. Struggling as a widowed stepmother to daughters my age, I lead a dual existence cursed by nightly transformations into a black swan through dark sorcery. Yet, why conform to a dismal fate? Embracing my dual roles as a daytime duchess and a whimsical lake queen by night, I defy expectations with gusto. However, my carefree existence takes an unexpected turn when I encounter a white swan infant who mistakes me for her mother, the tyrant emperor's youngest sibling. Despite our contrasting appearances—me, a black swan, and she, a white one—her charm is irresistible. As we navigate the challenges posed by her seven older brothers, including the imperious emperor himself, can our unconventional bond as mother and daughter withstand the trials of obsession and persecution?