Legend has it that there are eight ancient mythical beasts in Iron Time and Space: Divine Wind, Fiery Fire, Thunder, Lightning, Rain Ring, Ice, Wood Ling, and Iron Calamity. In order to protect the safety of Iron Time and Space, they had a fierce battle with the demon world, and used all their energy to seal Demon Lord Diablo in "Destruction". Because the energy was exhausted, the soul had nowhere to go, so it attached itself to eight different sacred vessels and wandered around the world...
——First volume