Allen comes to Rose Manor as a male servant to pay for his grandmother's treatment. There, he reunites with twin werewolf princes who saved him in childhood. Both brothers love him, but a deadly curse makes them fear losing control and hurting him. A jealous noblewoman torments him, while ambitious royal relatives scheme in the shadows. When his blood activates the wolf-fang pendant, the curse breaks. The fated trio finally let go of their barriers and take the throne of the kingdom together.
