Beggar: Start by Practicing Slaying Demons

It seems that you don't know much about the cultivation of demons. Demon is the collective name for the practicing birds and beasts. If a demon wants to ascend to the demon world, it must go through nine heavenly tribulations. Each heavenly tribulation includes three parts: body refining, elixir refining, and god training, so it is also called the "Three Nine Evil Tribulations." With each heavenly tribulation, the energy in the demon's body will double.