Nephilim.
They are creatures who have been long extinct.
Eons ago, the fallen war prevailed and lasted for hundreds of years. The war divided the world into two factions: those who followed the god who wielded light, and the rebel who commanded darkness—and among those who followed the benevolent god were the seven mortals who harbored immense power. These mortals are special as they have the blood of elves and other creatures mixed into their blood. They stood in the frontlines with the god of light.
The seven generals are collectively called the god's virtues. As the fallen god destroyed the realms, the seven generals along with the god of light defended the earthen realm from the destruction of the fallen god and the demons he has summoned.