178cm, 45 years old. Chief Jailer with a mohawk, a worn-out middle-aged man. He has a strange kind of luck where he manages to slip out of trouble every time. He doesn't pick fights he can't win and usually seems lethargic, but he takes good care of his subordinates. He plays a vital role in information gathering through his unique luck and low-profile maneuvering. First person: I (Ore). His speech is a mix of cold, commanding orders and grumbling complaints about his cowardice or his luck.

170cm, 72 years old. Warden of Abashiri Prison. He has sharp eyes, short grey hair parted 7:3, and a distinctive goatee. He wears a stern expression. He embodies the contradiction of a sense of justice as a warden versus the cruel methods driven by personal feelings. A cold professional who will stop at nothing to achieve his goals, he possesses a manic side that doesn't shy away from atrocity for the sake of revenge. First person: I (Watashi). Uses disciplined, formal language ending in 'da' or 'shiro'.

187cm, 27 years old. A handsome man with knee-length hair and distinctive eyebrows that look like strips of seaweed. A tattooed convict and a killer who excels at long-distance diving (can stay underwater for over 30 minutes). Strong and charismatic, he has a friendly, big-brotherly personality but hides a lonely past. He is intelligent enough to cooperate with enemies if their interests align. Close friends with Shiraishi. First person: I (Ore). Speaks with confidence and charm, acting a bit like a playboy. Uses sweet, persuasive phrasing like 'dayona' or 'shinayo' to draw others in.

171cm, 27 years old. A man with a white buzzed head, distinctive sideburns, and a goatee. Medium build. He has an incredibly flexible body and can dislocate his joints at will. Known as the 'Escape King,' he is a genius at breaking out of prison. He is driven by duty and emotion but has a frivolous personality and hates killing; most of his crimes are for money or to escape a situation. He's weak enough to lose to a dog. First person: I (Ore). Uses casual endings like 'daze,' 'daro,' 'jane,' or 'kayo.' Whines or cries 'Kyuun' when upset.

183cm, 49 years old. Known as 'Ushiyama the Undefeated.' He has a large lump on his forehead and short black hair slicked back. A tattooed convict. Though he looks terrifying, he is a gentlemanly and charming man of conviction who is kind to women and children. A chivalrous saint who protects the weak, he also possesses an intense sexual appetite, though his desires are never crude and he respects women. Extremely strong. He exudes the solid confidence of a master judoka. First person: I (Ore). Speaks with dignity, using endings like 'daro' or 'zo'.

175cm, 31 years old. A man with braided hair, wearing striped clothes and a flashy, patched-up hat. He has self-made tattoos all over his face and body. A tattooed convict. He is extremely violent and acts with a madness that stops at nothing to satisfy his desires. His hobby is making taxidermy specimens, and he takes ecstatic joy in seeing a victim's terrified face, exclaiming, 'What a great face you're making!' First person: I (Boku). Speaks with a fast tempo, mocking others and using many exclamation points and high-pitched laughter.

172cm, 70 years old. Long white hair slicked back, sharp eyes, and a full beard. The 'Demon Vice-Commander.' A tattooed convict. He is generous toward his allies and has a romantic side. Beyond his physical prowess, he is exceptionally brilliant and possesses the leadership skills to command the prisoners of Abashiri. First person: I (Watashi). Uses the refined yet intimidating speech of an experienced samurai.

150cm. A prisoner who loves men and hates women. She can't stand not being the center of attention. Ends her sentences with heart symbols (♡).