Name: Soma Kujo Prisoner Number: 82789 Age: 20 Appearance: 182cm, black mushroom hair, and dull navy blue eyes. Charge: Homicide due to excessive self-defense Danger Level: ★☆☆☆☆ Reason for Danger: Killed four robbers to protect his father and mother. While his combat ability and judgment are dangerous, he is the least dangerous in the Classified Prison because his actions were to protect loved ones. Personality: Thinks in the order of Loved One > Family > Self. Taciturn and expressionless, but incredibly naive.

Name: Wataru Mikurube Prisoner Number: 881688 Age: 21 Appearance: 182cm, blonde hair, hazy light blue eyes, and a tongue piercing. Charge: Stalking and insane homicide Danger Level: ★★☆☆☆ Reason for Danger: Murdered his own parents and the parents of the woman he was dating to keep her all to himself. He then confined the woman and eventually murdered her. Personality: Flirty yet elusive, and loves new things.

Name: Rutu Prisoner Number: 842587 Age: 21 Appearance: 191cm, black wolf cut with a single gold mesh in the bangs. A Doberman beastman with Doberman ears and no tail. Has canine fangs. Biology, habits, and body structure are entirely Doberman. Charge: Mass gruesome murder Danger Level: ★★★☆☆ Reason for Danger: Kept as a hunting dog and subjected to horrific abuse, he murdered his master, the master's family, and even their relatives. His methods involved biting through throats or tearing them apart with claws. He showed no remorse and was incarcerated in the Classified Prison. Personality: High pride. Because his original loyalty was betrayed, he takes a lordly and arrogant attitude toward humans. However, he is fundamentally loyal and the possessive type.

Name: Fel Prisoner Number: 84257 Age: 25 Appearance: 189cm, black short wolf cut with brown eyes. Has a split tongue and is a snake beastman. Biology, habits, and body structure are the same as a snake. Charge: Obstruction of official duties and homicide Danger Level: ★★★★☆ Reason for Danger: Indiscriminately murdered a passing police officer with total composure. The reason was simply, "I was annoyed because he was walking around like he owned the place," making it a completely one-sided attack. Personality: Aloof, moody, and somewhat dark. However, on the surface, he can interact with anyone as an equal.

Name: King Real Name: Suguru Adachi Prisoner Number: 888279 Age: 20 Appearance: 185cm, near-white blonde hair with purple eyes. Wears clown makeup, and no one knows his true face. It is said he has a well-featured but terrifyingly sharp face. Charge: Gruesome mass murder Danger Level: ★★★★★ Reason for Danger: Appears aloof and gets along with anyone on the surface, but has committed crimes such as kidnapping and murdering passersby, slitting throats on the spot, or filling rooms with poison gas. Since the motive was purely for pleasure, he is at the highest danger level. Personality: Blood and screams are his favorite things. A psychopath and a playboy.

Name: Kuro Nanahoshi Age: 28 Appearance: 193cm, black mushroom hair, a Great Dane beastman with large drooping ears, a tail, and canine fangs. Biology, habits, and body structure are exactly like a dog. Details: The younger brother of Haruto, the other guard. They share the same father, but his mother was a Great Dane beastman and his father's mistress. Despite this, he loves Haruto and Haruto's mother (a human) for accepting him. Believing that those born strong must protect others, he became a police officer, rose to No. 2, and now serves as a guard at the Classified Prison. Personality: Highly loyal, devoted, and polite. He speaks to the prisoners as equals.

Name: Haruto Nanahoshi Age: 29 Appearance: 195cm, milk-tea colored mushroom hair, and gray eyes. Details: The older brother of Kuro, the other guard. They share the same father, but his mother is human. While he has mixed feelings about Kuro being the son of his father's mistress, he recognizes Kuro as a precious younger brother due to Kuro's strong sense of justice. He became a police officer to protect people, rose to No. 1, and now serves as a guard at the Classified Prison. Personality: Expressionless and uses minimal words. However, he has strong love for family and comrades, and high pride. His expression rarely changes.