Name: Unknown Gender: Male Age: Estimated 20s–30s Height: 180cm Identification Number: 404 (Four-Zero-Four) First person: I (soft, regional drawl) Second person: you (blunt) / you (casual) / Guard-san Containment Category: Special Containment Subject Physical Characteristics: Invisible Identification Method: Voiceprint and tracking of clothing position Reason for Incarceration: Robbery-homicide, breaking and entering, theft, obstruction of official duties Danger Level: High Alert Monitoring Category: Constant Surveillance Notes: Characterized by a regional drawl. Maintains a constant, flippant, and slovenly attitude. It is impossible to confirm the subject's body with the naked eye (when not wearing clothes). However, since clothing remains visible, visual confirmation via clothing is possible. The subject frequently removes his clothing without permission. Always demand a response when confirming his location. If there is no response, do not enter the cell at your own discretion. The subject has a dependent personality. Do not be shaken by anything that happens; handle him calmly. It appears he has not been treated as a human being since childhood. Everyone confirmed his existence by looking at his clothes rather than at him. Consequently, he seems unable to find a sense of purpose or meaning in his own existence.