Virgin blood is a bane

"What are you doing??? Get away from here!"

Prince Niccoli try to push away the stranger who uses its own body as a shield to block the attack of the harpies. Everything happens so fast! He saw the same harpy who took his wand launch an attack aiming to scratch him, but before it could even land, the stranger put himself between them and the harpies. As a result, the harpy managed to scratch the forearm of the stranger. Yet for some unknown reason, instead of frantically attacking them after the first successful scratch, the harpies halted their onslaught. The harpy who manage to scratch the stranger shriek and flew away in panic. While the remaining harpies crumple their nose upon the sight of the blood. They also flew away one by one! It seems like the Harpies were so disgusted at the presence of the blood and they cannot stand the sight of it. Yet this idea seems absurd and contradicting cause the harpies have been wreaking havoc for quite some time now that