As a Demon Cultivator, I Catch Ghosts and Become Immortals in the City!

[No system + IQ online + funny + invincible flow] I have been a human being for three generations, and I am a real person in the golden elixir stage. I thought I could live a normal life this time, but when I came back from rebirth, I actually had no aura in this life? I can't practice, can't even beat a kid? ! Fortunately, I have a ghost-catching weapon! In desperation, he chose to join the Evil Execution Division, catch ghosts and upgrade. He originally wanted to rebuild the devil's way and ascend to immortality, but he found that things were far from that simple... The humans in this world were actually "chickens" in the pasture of ghosts and gods? ! Who is the mastermind behind this? How do I break the situation? Etc! Why are these ghosts and gods trembling in front of me? By the way, when did I become so strong? !