Niẏati-Wāra Prison

Niẏati-Wāra Prison is the single most advanced rehabilitation facility sponsored in part by Saino Institute. Focused on forcefully making inmates serve their sentences. In other words anyone with more than a life sentence will be revived augmented and restored to die of as natural causes as possible as many times as they were sentenced.

Killing your self isn't an option because they will just restore you to up to a minute before you died and in fact with simply add 2 life sentences to you. Killing another inmate will result in the same punishment. Niyati-Wara is a state of the art solid entity, with constant mental backups and uncanny experiments. It is not a place one could escape without forfeiting the rights to their identity to Saino Institute which does not necessarily mean getting out any earlier.

Longest recorded inmate has been serving over 900+ years

(Ace Volkov Journal entry: Ch9.2)