I Have a Heavenly Prison

In the ancient times, the way of heaven collapsed and the prison of heaven disappeared. Now, Zhang Tianchen has obtained a heavenly prison, which contains all the prisoners of gods and demons in the three thousand worlds since ancient times. The Yuanshi Demon, the ancestor of all demons, was sentenced to ten billion years in prison; Tianyue Danzun, the ancestor of alchemy, was sentenced to five billion years in prison; Duobao Saint, the founder of weapon refining, was sentenced to 380 million years in prison. Want a reduced sentence? Want to live a more comfortable life? Want to go out and help your descendants? No problem! Get something in exchange! Or you can work for Zhang Tianchen! Or let your descendants trade the treasure!