Old Sky Lord is the second in command of the adult section of the Hell Clan and the father of the "Young" Sky Lord. He is the absolute master of a technique that channels lightning inside the body to super-charge reflexes and muscle power. This has become such a second nature to him that he needs to focus mentally on not powering up, or else he'll do it without even really noticing it.
He and his wife Lady Sky taught their daughter nearly everything they know, but besides her they also took four other students. Old Sky Lord taught Grey Winters and Emerald Spring, giving them both roughly half of his martial knowledge. His wife taught Drifting Clouded Autumn and Fierce Summer.