The Supreme Immortal and Demon in the Cage

Have you ever felt that the world is like a prison, and that we are criminals trapped in it by invisible shackles? Otherwise, why is the world suffering from many diseases and disasters? Even with the technology that can break out of this world, we are still lonely existences. There is no one like us in the vast universe. In fact... This is the fact. This place... Was originally a prisoner on earth, but it was just a trick of heaven and man. In order to trap a person who once made the entire three realms fearful. We are all just extras...