Fantasy: Guarding the Prison for a Hundred Years, I Am Invincible!

Demons are rampant in this world, and ordinary people's lives are like straw. Ye Lingtian traveled through time and became a frail jailer with only a short time to live. I thought this would be it for the rest of my life, but I accidentally got a god-level prison system! Every time you include a prisoner, you can continue to gain experience points and improve your level! … A hundred years later, a peerless strong man walked out of prison!