My sister, who is of commoner birth, has created a reverse harem, but I think they're probably not her lovers—they're her underlings.

My half-sister lived as a commoner, but was discovered by my power-hungry father and received an education befitting a noblewoman. Starting this year, she began attending an academy that only nobles can attend. Because of her beauty and the unique charm she possesses from her commoner background, which sets her apart from other young ladies, she is extremely popular and has apparently created a reverse harem. My fiancé, the Third Prince, has also become a member of this reverse harem. However, I am not worried. Since my half-sister is a tyrant who has lived by the motto that "power" is everything, surely the men are simply fascinated by my sister's "power." ※I am also posting this on Novel Up Plus and Alpha Polis.