Charlotte Mason, a twenty-eight-year-old single from birth, is transmigrated as a concubine sent to bring luck to Everton Manor. Forced to produce an heir for the estate's fortune, she discovers Lord Everton is impotent. Seeking a handsome scholar to father her child, she accidentally entangles herself with the cunning and suspicious Crown Prince, Alexander Sterling. Thus begins a story of sweet romance and intense tension between them.