Artist caption : English : Prisoner submerged in a cesspool
In the dungeons, we hear rumors that sometimes prisoners go missing.

There are various speculations: he escaped from prison, died in an accident, 〇〇〇〇〇〇ted suicide...
The most likely theory is that the missing prisoners were ``placed in a special prison for repentance.''
Yes, the prisoners who go missing have a high tolerance for stress and don't make a sound even with slight 〇〇〇〇〇〇〇, which annoys the administrators.

The missing prisoners must have been given special punishment for discipline...that's what the remaining prisoners thought.

And that prediction was actually correct.

Unbeknownst to the prisoners, there was a channel beneath the stone floor of the dungeon that carried away the sewage discharged by the prisoners.
And between the channels was a small sewage tank.

The missing prisoners had their hands and feet bound and were submerged in a sewage tank, with iron bars preventing them from coming back to the surface.

Breathing is done through a funnel that protrudes from the sewage.

Prisoners would be submerged in cesspools on the floor, capped with stones, fed with filth and sewage, and left there for months.

Furthermore, the prisoners were faced with a terrible punishment.

"Bladder breathing"

This 〇〇〇〇〇〇〇, which is the counterpart to ``anal breathing,'' was extremely humiliating and constantly sexually aroused the prisoners.