Ruin’s Magic

The tablet the Regis found mentioned how the Dragon Lord came to be. It said that one of the most trusted General of the Dark Sage infiltrated the Human's last stronghold and singlehandedly destroyed several mage families. This included the Regis Family. The Dragon King, which had been living in secret in a nearby temple felt compassion after witnessing the Regis's ancestor's last stand. The former bestowed the latter with a blessing and because of that, successfully defeated the Demon General. However, the old Regis Ancestral Land was left desolate, the whole land tinted in blood-red ruins, which forced them to leave and find another home in the central lands.

The blood-red ruins was caused by the Demon General, thus, he was given the name the Red General.