This binding is for people who want to achieve immortality after death. You will receive a Demonic Spouse that you will be with for all eternity. I will bind her or him with your soul with merging binding and after life binding. You will rise to power and become an ancestor spirit who is more evolved than a normal ancestor spirit. With your Demon Spouse's powers you can also build your own army of demons and angels and become a Dark Lord in your own rights.