Ye He Na La family is the greatest demonized power user family in Iron Dimension. Thousand of years ago, they had been used by demons, thus they have great demonic powers. However as they grew stronger, later started to rebel. After they created the Suppress Demon Triology, they successfully seperated from the demons and became independent. Now they are one of the three powers of the Iron Dimension along with the good Power-users and Mojie.