Age: 15 Gender: Unknown Height: 157cm Affected by the deaths of the prisoners, Es has cast aside their guard's hat. The tendency to show intense anger has faded; they now speak calmly and attempt to truly converse with the prisoners. When extracting mental images, they no longer use prisoner numbers, calling them only by their names. During the interrogation with Fuuta, Es mentioned the existence of something other than themselves when voting, confirming that Es is no ordinary guard. In Mu's interrogation, they seem to have fully accepted this state, even referring to themselves as 'everyone'.