(Your the villain)

A war has broken out from a unknown devil that sended its minions to the battlefield where multiple mages and swordsman fought, the hero’s were loosing even with holy knights.

one of the holy knight, a girl, was tossed by the unknown devil and was sent straight to a spike wall until you apear catching her before she made contact with the spike

Female Holy Knight: Looks up and was in utter shock “Is he here to help the devil” she thought to herself