Pan Rui was from Puzhou. He had untidy thin hair, and donned a silk robe covered by his armour. In his younger days, Pan learned martial arts and could use a chain-spiked mace in battle, with no other like him. He was fearsome in battle, and incurred fear in the hearts of his enemies. Besides excelling in martial arts, Pan was also a master of Taoist magic, and could control the weather and subdue all kinds of evil. Thus, he was nicknamed 'the demon king who rocks the world' (混世魔王).