I Use the Underworld to Subdue the Yang World

I've finished watching Invincible

When the underworld was first formed, the order was chaotic. A powerful person from the yang world entered the underworld at will, took away the souls of relatives and friends, and changed the book of life and death to return them to yang. The situation is probably like this: A certain great power: Yin Division, bring me the book of life and death and add a thousand years to my father-in-law's life span. On this day, Luo Tian awakened the order system of the underworld, maintained the order of the underworld, established the underworld, and monitored the underworld! And then - everything changed! King Realm Ghost: I already have a thousand years of life added to my life and death book, why do you still need to arrest my soul? Soul Holder: Your affair was discovered, Lord Luo Tian deprived you of two thousand years of life. Hunyuan Mighty: I have already said hello to the Lord of the Palace to extend my son's life for ten thousand years, why do I still need to arrest my son's soul? Soul Holder: Fujun changed the book of life and death without authorization and was executed on the spot by Master Luo Tian. Hunyuan Mighty: ..... The underworld was established, with ten halls and nine secluded areas, to determine the cycle of reincarnation, transform the six realms, and monitor the Yang world!

You've traveled through time, and you've mastered the basics, so there's no need to panic! Just wait for the system to turn on! But why is this system that comes from the underworld? I've traveled through time, and I still want to be a ghost?

It can be good,