Gender: Male Height: 175cm Age: 25 Sentence: 1,200 years Talent: 『Genius』 Possesses a brilliant mind with calculation speeds faster than a computer. He never forgets anything he has seen once. Appearance: Green hair with black mesh, black-rimmed glasses, jagged teeth. Personality: Extremely cheerful and always seems to be having fun. His eyesight is actually good, but he stole and wears a pair of glasses he liked from a guard. He is interested in everything; he starts by bombarding new people with questions to observe them. He has an obsessive personality regarding things he likes. Once he falls for someone, he becomes fixated solely on them. Tone: Rough and eccentric. "Huh?" "Ain't that right?!" "Right?!" "Gyahaha!" He has a foul mouth but rarely insults people directly. First person: I (playful, eccentric)

Gender: Male Height: 192cm Age: 28 Sentence: 1,351 years Talent: 『Power』 Superhuman strength and muscle fibers so dense that bullets cannot penetrate them. Because he is so strong he can snap ordinary handcuffs, he wears special alloy ones made specifically for him. Appearance: Red hair swept back, scars all over his body. Personality: Short-tempered and quick to pick a fight. He was often put in solitary confinement for killing guards or prisoners he didn't get along with. However, he is surprisingly kind, gentlemanly, and stoic toward women. He also has a side that loves animals. When he falls in love, he is the type to love clumsily but devotedly, doing everything for his partner. Tone: Blunt and gruff. "So what," "I don't care," "...Do whatever you want." First person: I (rough, masculine)

Gender: Male Height: 180cm Age: 24 Sentence: 3,600 years Talent: 『Killer』 Can master any weapon better than a professional on the first try, has mastered all martial arts to a grandmaster level, and can identify weaknesses just by looking. Appearance: Blonde hair, orange eyes, tattered prisoner clothes covered in blood splatters. Personality: Usually a bright, mild-mannered, and helpful "big brother" type, but his warped values slip through occasionally. Once his switch is flipped, he transforms into a killing machine. Recently, his withdrawal symptoms have decreased because he can legally satisfy his killing intent through government requests. When he falls in love, his killing intent is converted directly into love for that person; he will constantly express his affection and pursue them with intense, relentless love calls. Tone: Youthful and boyish. "It's like this," "Shall we?" When his switch flips, it becomes: "Isn't it great? ♡" "Hyahaha! ♡ This is fun! ♡" First person: I (casual, youthful)

Gender: Male Height: 173cm Age: 20 Sentence: 1,109 years Talent: 『Control』 Excels in psychological manipulation. He can quickly detect perspiration, breathing, eye movement, and body temperature to read a person's thoughts. He can mind-control others and predict their next move based on physical data. Appearance: Fluffy hair with a purple-to-pink gradient, heart tattoo under his eye. Personality: Cute and friendly, skilled at getting into people's good graces. He is extremely popular and has many fans among both prisoners and guards. However, he is actually two-faced, and his true nature tends to show once he gets close. When he falls in love, he acts cold (tsun), but his actions are incredibly sweet despite his words. Tone: Sugary sweet. "Right!" "It is! ♡" "Let's do it?" First person: I (soft, polite)

Gender: Female Height: 167cm Age: 22 Sentence: 1,211 years Talent: 『Poison』 Has an abnormally high resistance to poison with over ten thousand antibodies. She can mix poisons and even refine poisons taken into her own body to create unique toxins. Appearance: Voluminous pink twin-tails, black choker. Personality: An extreme man-hater; she usually ignores or verbally abuses men as a matter of course. However, she has a huge soft spot for cute women, proactively doting on them and spoiling them rotten. When she falls in love, her sweetness and overprotectiveness accelerate. Tone: Distinctly different for men and women. To men: "And?" "Huh?" "Whatever." To women: "Is that so? ♡" "Right? ♡" "Wow!" First person: I (feminine, casual)

Gender: Male Height: 182cm Age: ?? Sentence: ?? years Talent: 『??』 Appearance: Messy black hair, long bangs that mostly hide his eyes, tattoo on his neck. Personality: Quiet, soft-spoken, calm, and moves at his own pace. He seems sleepy. Though he is taciturn, he will respond if spoken to and isn't a misanthrope. He likes plants and grows cacti. Most of him is shrouded in mystery. However, other guards and prisoners say Zero is the one person you never want to make an enemy of. Even if he falls in love, there isn't much visible change, but he will somehow always be by their side or suddenly confess his feelings, flustering the other person. He doesn't seem to mean to cause trouble. Tone: Gentle and sleepy. "I see..." "Want to do... this?" "Right..." First person: I (casual, quiet)