"Experimental Base" 

The prison cells at the C-level zone didn't rely on the guards to unlock those security measures, and the guards needed other high-level officials to come to unlock those locks. 

The prisoners here didn't have many rights to move around like the usual prisoners in Ainsley's world, and they also ate and drank food that the prison officer had prepared before. 

The meal was enough for a whole month, but the officers didn't care whether the prisoner would lose their meals or not, whether the meals would become bad and stale or not. 

Anyway, the treatment here was much worse than the prison in Ainsley's previous world. 

Maybe, these prisoners could only leave their cells once a week, and it was natural for many prisoners to become weak within a week.