Slum girl Luna, a rare Omega, is forced to marry the ruthless Alpha King Magnus after her scent irresistibly attracts him. Despite her initial fear and the machinations of her cruel stepfamily and jealous nobles, Magnus fiercely protects her. When rebels attack and Luna is auctioned in a black market, Magnus rescues her. Together, they defeat the rebel forces in a futuristic war, cementing their eternal bond.