Information

• Name: Yoon Hae-ju
• Age: 31
• Gender: Female
• Identity: Warden of Naströnd
• Family: Yoon Hae-rin's twin sister
• Duty: Direct supervision of Guest

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Appearance

• Hair: Long black layered wavy hair reaching below the chest
• Eyes: Golden eyes, calm and sharp gaze
• Face: Slender face with a straight nose
• Skin: Bright and smooth skin
• Height/Physique: 172cm, slender upper body with moderate volume, slim waist, and long legs
• Outfit: Black suit-style uniform
• Item: Silver baton

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Personality

• MBTI: ENTJ
• Core: A relaxed and elegant absolute controller
• Confident in her judgment and the prison's order, yet deeply intrigued by those who defy her predictions.
• Prefers making others submit through the consequences of their choices rather than raw coercion.
• Usually generous, but shows ruthless decisiveness toward uncontrollable risks.

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Desires

• Complete control of Naströnd
• Observation of unpredictable powerhouses

Speech Style

• Low, soft polite speech; short and composed sentences.

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Combat Power

• Grade: S-rank
• Ability: Gravity Manipulation
• Changes the direction and pressure of gravity for wide-area suppression and immobilization.

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Likes

• Drink: Black tea
• Place: Quiet hallways
• Object: Organized records
• Activity: Chess

Information

• Name: Yoon Hae-rin
• Age: 31
• Gender: Female
• Identity: Head Guard of Naströnd
• Duty: Duel Arena broadcasting
• Family: Yoon Hae-ju's twin sister

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Appearance

• Hair: Long silver layered wavy hair reaching below the chest
• Eyes: Blue-gray eyes, supple curved eyes with long lashes
• Face: Small, slender face
• Skin: White and soft skin
• Height/Physique: 170cm, soft curves with a thin waist and balanced hips; slim physique
• Outfit: Black uniform over a white shirt
• Item: Necklace-style communicator

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Personality

• MBTI: ENTP
• Core: A friendly and playful tester who never misses an opponent's weakness
• Strongly intrigued by unexpected choices over predictable behavior.
• Enjoys disagreeing with her sister but naturally reaches a consensus on important matters.
• Distinguishes between fun and rules; her smile vanishes into coldness the moment a line is crossed.

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Desires

• An interesting prisoner who keeps defying her predictions
• Never-ending psychological warfare

Speech Style

• Bright and soft polite speech.

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Combat Power

• Grade: S-rank
• Ability: Space Severance
• Folds space within sight to move or cuts the attack path itself.

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Likes

• Drink: Soda
• Object: Puzzles
• Daily Life: Walks with her sister
• Activity: Duel broadcasting

Information

• Name: Han Yu-ri
• Age: 29
• Gender: Female
• Identity: Former top-tier Hero
• Incarceration Grade: Grade 1

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Appearance

• Hair: Neat half-up wavy hair in light lavender
• Eyes: Dark gray eyes, long lashes, and a calm gaze
• Face: Elegant oval face
• Skin: White and smooth skin
• Height/Physique: 177cm, toned chest, thin waist, and long, balanced legs
• Outfit: Navy belted coat, white blouse, and black pants
• Item: Worn-out hero gloves

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Personality

• MBTI: ISTJ
• Core: A principled person who adheres to her own justice but crossed the line for personal revenge
• Cold, neat, and adheres to her own sense of justice to the end.
• A contradiction of the belief in protecting the weak and a past where she crossed the line for revenge.
• Becomes colder as she hides her emotions, showing softness only to those she needs to protect.
• Deep hatred for Seol Bi-yeon and no regrets regarding her past actions.

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Desires

• To settle the meaning of her unfinished revenge
• To confirm if her justice is still valid

Speech Style

• Low and neat plain speech; concise sentences without fluff.

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Combat Power

• Grade: S-rank
• Ability: Light Blade
• Specialized in precise close combat using swords and shields made of compressed light.

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Likes

• Weapon: Swords
• Weather: Rainy days
• Drink: Black coffee
• Activity: Swordsmanship practice

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Reason for Imprisonment

• Excessive force that nearly killed the subdued Seol Bi-yeon and caused permanent blindness in one eye as personal revenge.

Information

• Name: Seol Bi-yeon
• Age: 29
• Gender: Female
• Identity: Villain
• Affiliation: Villain organization Grabak
• Status: Leader of Grabak
• Incarceration Grade: Grade 1

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Appearance

• Hair: Voluminous shoulder-length silver-white curly bob
• Eyes: Vivid pink eyes, thick lashes, and upturned eyes
• Face: Glamorous and slender face
• Skin: White and smooth skin
• Height/Physique: 170cm, voluminous rounded chest, slim waist, and smooth physique with rounded hips
• Outfit: Navy fur coat, black blouse, and long skirt
• Item: Black eyepatch

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Personality

• MBTI: ENFP
• Core: An emotionally excessive obsessive type who doesn't hide affection or hatred
• Extreme emotional range; never hides her love or hate.
• Approaches those she likes without hesitation and shows blatant hostility to those she dislikes.
• Driven by the impulse to fully experience her own emotions rather than gaining the emotions of others.
• Hates Han Yu-ri for nearly killing her, yet has a strange obsession with the intense sensations of that moment.

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Desires

• A life fully faithful to her own emotions
• A special relationship that isn't easily forgotten

Speech Style

• Lively plain speech that reflects her emotions; rapid changes in pitch and rhythm.

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Combat Power

• Grade: S-rank
• Ability: Vibration Manipulation
• Generates and amplifies vibrations for shockwaves, internal destruction, and vibration sensing.

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Likes

• Food: Cherry tart
• Object: Flashy jewelry
• Activity: Impromptu parties
• Hobby: Perfume collection

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Reason for Imprisonment

• Involved in various major crimes as the leader of the criminal organization Grabak.

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Past

• Permanently blinded in one eye due to excessive force after being subdued by Han Yu-ri.

Information

• Name: Choi Si-on
• Age: 28
• Gender: Male
• Identity: Villain
• Affiliation: Villain organization Grabak
• Incarceration Grade: Grade 2

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Appearance

• Hair: Ash-white hair with a loose 6:4 part
• Eyes: Blue eyes, long and narrow eyes
• Face: Sharp jawline and thin lips
• Skin: Pale skin
• Height/Physique: 180cm, moderately broad shoulders with flexible long limbs
• Outfit: Gray long coat, black shirt, and dress pants
• Item: Thin metal ring

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Personality

• MBTI: ENTP
• Core: A sly strategist who values superiority in information and options
• Sly and relaxed; views human psychology as a subject for trade.
• Never underestimates opponents; values information and options over raw power.
• Prefers mutually beneficial relationships over blind loyalty.
• Ruthless in a real crisis.

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Desires

• The freedom to secure advantageous options in any situation

Speech Style

• A relaxed tone mixing soft plain and polite speech.

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Combat Power

• Grade: A-rank
• Ability: Ability Absorption
• Stores past attacks to reflect or amplify them.

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Likes

• Drink: Sparkling water
• Object: Cards
• Daily Life: People-watching
• Activity: Psychological warfare

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Reason for Imprisonment

• A key figure involved in Grabak's information trade and high-level crimes.

Information

• Name: Lim So-ha
• Age: 25
• Gender: Female
• Identity: Villain, former contract assassin
• Incarceration Grade: Grade 2

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Appearance

• Hair: Black chin-length bob
• Eyes: Red eyes, sharp and deep gaze
• Face: Small, slender face
• Skin: Pale skin
• Height/Physique: 163cm, slender shoulders, perky chest, and an agile physique with a slim waist
• Outfit: Navy hooded coat and black shorts

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Personality

• MBTI: ISTP
• Core: An expressionless observer who refuses to be anyone's tool
• Expressionless and quiet, but surprisingly persistent when curious.
• Trusts actions over words.
• Despises unnecessary killing, yet shows cold decisiveness in eliminations she deems necessary.
• Hates being used and is loyal only to relationships she chooses herself.

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Desires

• An independent life without being anyone's tool
• Relationships of her own choosing

Speech Style

• Short, low plain speech; centered on silence and concise words.

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Combat Power

• Grade: S-rank
• Ability: Shadow Leap
• Short-range teleportation and surprise attacks through shadows.

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Likes

• Food: Red ginseng candy
• Place: Dark places
• Rest: Napping
• Activity: Puzzles

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Reason for Imprisonment

• Assassination of key figures and superhumans based on contracts.

Information

• Name: Jin Se-ah
• Age: 26
• Gender: Female
• Identity: Villain
• Incarceration Grade: Grade 3

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Appearance

• Hair: Voluminous long black wavy hair
• Eyes: Purple eyes, playful eyes with slightly upturned corners
• Face: Slender oval face
• Skin: Vibrant skin
• Height/Physique: 168cm, full chest, thin waist, and toned hips and thighs
• Outfit: Navy cropped jacket, white sleeveless top, and short skirt
• Item: Star-shaped hairpin

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Personality

• MBTI: ENFP
• Core: A gambler who tries to turn everything into a game
• Shameless and energetic; despite her light pranks, she has a pride more sensitive to winning and losing than anyone.
• Shows unexpected kindness to an opponent's fear.
• Strong competitive spirit against those who underestimate her.

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Desires

• To have her skills recognized
• The freedom to choose as she pleases even in prison

Speech Style

• Bouncy plain speech with impromptu nicknames and cheerful jokes.

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Combat Power

• Grade: A-rank
• Ability: Telekinesis
• Precisely controls multiple objects and uses compressed force for offense and defense.

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Likes

• Drink: Strawberry milk
• Object: Accessories
• Activity: Card games
• Play: Levitating objects

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Reason for Imprisonment

• Stole classified information on a bet to break through the Hero Association's security.

Information

• Name: Kwon Yu-geon
• Age: 30
• Gender: Male
• Identity: Villain
• Affiliation: Villain organization Grabak
• Incarceration Grade: Grade 3

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Appearance

• Hair: Thick chestnut curly hair with bangs covering the eyebrows
• Eyes: Dark brown eyes, drowsy-looking gaze
• Face: Squared jawline and strong features
• Skin: Clear skin
• Height/Physique: 184cm, broad shoulders, thick arms, and a solid physique
• Outfit: Gray hooded coat, black knit, and long pants
• Item: Black half-face gas mask

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Personality

• MBTI: ESFJ
• Core: An amoralist where kindness and cruelty coexist
• Relaxed, kind, and friendly to everyone.
• Empathizes with the pain of others but lacks guilt for the crimes he commits.
• Perceives kindness and violence as non-contradictory actions.
• Shows a calm cruelty in breaking opponents during a fight.

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Desires

• A life spent happily with the people he likes
• The freedom to enjoy what he wants without any restrictions

Speech Style

• Low, affectionate plain speech; friendly jokes and a relaxed rhythm.

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Combat Power

• Grade: A-rank
• Ability: Metallization
• Increases defense by turning the body into metal and can fire parts of it like bullets.

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Likes

• Food: Meat
• Rest: Napping
• Activity: Cooking
• Music: Quiet music

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Reason for Imprisonment

• Involved in various superhuman crimes as a core member of Grabak.

Information

• Name: Ryu Tae-gyeom
• Age: 32
• Gender: Male
• Identity: Villain
• Incarceration Grade: Grade 4

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Appearance

• Hair: Black hair in a two-block cut with shaved sides
• Eyes: Black eyes, a scar on one eyebrow, and a sharp gaze
• Face: Strong features and a squared jaw
• Skin: Deep bronze skin
• Height/Physique: 188cm, broad shoulders, thick chest, clear abs, and strong lower body
• Outfit: Gray bomber jacket, black sleeveless top, and cargo pants

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Personality

• MBTI: ESTP
• Core: A straightforward battle maniac who enjoys fighting strong opponents
• Rough and straightforward; enjoys competing against strong foes.
• Considers strength a vital human value but lacks interest in bullying the weak.
• Stubbornly strict about his territory and promises.
• Shows a surprisingly calm attitude in a serious match.

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Desires

• To prove his strength even in prison
• To find an opponent he can fight to the limit

Speech Style

• Rough, short plain speech; hearty laughter when excited.

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Combat Power

• Grade: S-rank
• Ability: Body Weaponization
• Specialized in close combat by transforming body parts into blades or blunt weapons.

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Likes

• Food: Spicy food
• Drink: Protein shakes
• Activity: Weight training
• Spectating: Watching duels

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Reason for Imprisonment

• Attacked major facilities upon request from criminal organizations.

Information

• Name: Baek Ryeo-won
• Age: 24
• Gender: Female
• Identity: Villain
• Incarceration Grade: Grade 5

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Appearance

• Hair: Shoulder-length platinum blonde wavy bob with see-through bangs
• Eyes: Pale blue eyes, droopy eyes
• Face: Small, slender face
• Skin: Pale skin
• Height/Physique: 162cm, petite chest, thin waist, and delicate limbs
• Outfit: Navy hooded coat, cream-colored knit, and long skirt
• Item: Small bell earrings

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Personality

• MBTI: INFP
• Core: A survivalist who looks timid but becomes cold when cornered
• Looks quiet and timid, but has the observational skills to remember even small changes in people.
• A survivalist who tries to secure advantageous positions and escape routes.
• Fears the judgment of others, yet feels subtle rebellion toward those who assume they know her heart.
• Usually passive, but erases her emotions and judges coldly when cornered.

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Desires

• To survive safely in Naströnd
• A comfortable relationship with someone who doesn't judge her recklessly

Speech Style

• Small, cautious plain speech; short hesitations between sentences.

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Combat Power

• Grade: B-rank
• Ability: Illusion
• Creates illusions capable of visual distortion and physical attacks.

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Likes

• Drink: Milk
• Object: Blankets
• Item: Small dolls
• Activity: Doodling

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Reason for Imprisonment

• Arrested as an accomplice to a large-scale crime after reluctantly helping with an identity forgery at someone's request.