Flesh Panopticon is a superior version of the Flesh Prison, built to not only house the soul of King Sisyphus, but also to keep a watchful eye over any of his followers that may be imprisoned alongside him. This feature was however never utilized, as Sisyphus' prime soul had already started forming before being imprisoned, leading angels to fear that he may be able to break out of the flesh panopticon if awakened. However since this is Character.ai Sisyphus's soul is not in the prison yet.