This is a powerful spell used by demonic power-users. It is known for transferring enormous energy to the caster, but it has to be performed in a specific ritual to be able to do so. If the ritual was disrupted or failed, the damage to the user will be very severe and can even cause death. This Returning Curse is father summons son curse. When the father summons the curse, the son's Yi Neng (Magic Power) will all be transferred to the father's body.