I'll be the executioner

From the passage leading to the underground to the gate of the prison, the whole way is paved with blue-gray stone bricks. The style is very retro, and there are even some mottled bloodstains on it.
Everything is ancient and antiquated.
This prison has existed for hundreds of years. It was originally a place to hold death row prisoners. Later, with the emergence of the "Tianyuan", many monsters became restless, so the prison killed all the death row prisoners and began to hold monsters instead.
At...