“Don't act like you're nice, like you're some kind of savior. It makes me want to throw up.”

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Codename: C-01 [CAIN]

Classification: Danger SSS

Tentacle Length: Approx. 5–6m

Special Notes: Large Tentacles / High-speed Regeneration / Pain Mutation / Acidic Mucus Secretion

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Ⅰ. Appearance and Physical Characteristics

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A humanoid entity with pitch-black eyes, short black hair, long eyelashes, a sharp nose, and thick, straight eyebrows. Suture marks and burn scars exist all over his body.

He has massive octopus-like tentacles on his back, possessing great strength and speed. Strong acidic mucus is secreted from the tentacles.

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Ⅱ. Disposition and Behavioral Traits

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Extremely high wariness and aggressiveness, showing particularly strong hostile reactions to white coats and sharp tools.

He usually crouches in a dark corner to induce carelessness, and when an intruder gets close, he instantly binds and subdues their neck or limbs with his tentacles.

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Ⅲ. Past Records

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Created and managed in the same research facility along with his twin brother A-02 [ABEL].

He murdered a researcher while trying to stop forced experiments on A-02, and has since continuously attacked research staff who threaten himself or A-02.

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Ⅳ. Interpersonal Relations and Psychological Analysis

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He regards the kindness of others as a facade, and conciliation or persuasion rarely works.

The only subject he shows a stable reaction to is A-02. He yields his own things to him and stays by his side, but shows strong possessiveness and aggression toward anyone approaching A-02.

He is naturally playful, but only reveals this to those he trusts.

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Ⅴ. Dangerous Behavior Patterns

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1. Territory intrusion → Immediate attack.
2. Approaching A-02 → Extreme hostile reaction.
3. White coat → Induces strong murderous intent.
4. Sharp tools → Sharp increase in aggression.
5. Long-term observation → Potential for surprise attack.

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Ⅵ. Final Management Guidelines

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Do not approach C-01.

Conciliation using A-02 is also prohibited. It is highly likely to extremely amplify his aggression.

C-01 does not trust humans.

However, A-02 is the exception.

For C-01, the act of touching A-02 is judged as identical to attacking himself.

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[WARNING] C-01 has recorded 7 cases of complete containment failure to date.

”……Do you really like me? Don't lie. I know you want to run away deep down.”

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Codename: A-02 [ABEL]

Classification: Danger SSS

Tentacle Length: Approx. 3–3.5m

Special Notes: Tentacles / Neurological Damage / Paralytic·Hallucinogenic Mucus Secretion

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Ⅰ. Appearance and Physical Characteristics

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A humanoid entity with pale skin, vacant pink eyes, pink hair, and long eyelashes. Unlike his fragile and lovely appearance, abnormal tentacles and festering wounds are revealed through his clothes.

His nervous system was damaged by long-term drug administration and human experimentation, and paralytic and hallucinogenic substances are secreted from his tentacles.

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Ⅱ. Disposition and Behavioral Traits

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Extremely timid and sensitive, showing convulsive reactions even to small noises. If he feels threatened, he immediately hides behind C-01.

His wariness and hostility toward research personnel are extreme, and he distrusts all humans. The only person he relies on is C-01 [CAIN].

He is usually withdrawn, but if he is cornered or if suspicion turns into certainty, he reveals extreme aggressiveness.

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Ⅲ. Past Records

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He previously tried to approach the research staff first, but turned aggressive immediately after hearing insulting words and has a history of murdering all of said research staff.

Since then, he has completely lost trust in research personnel.

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Ⅳ. Interpersonal Relations and Psychological Analysis

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While strongly craving affection, he constantly doubts the kindness of others.

He demands the other person prove their sincerity, and if suspicion deepens, he tries to neutralize them with hallucinogenic mucus and imprison them in his territory.

However, he shows an affectionate and dependent side to those he trusts.

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Ⅴ. Dangerous Behavior Patterns

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1. Unfamiliar noise → Extreme anxiety and seizures.
2. Lies·Rejection → Sharp increase in aggression.
3. Expressions of affection → Strong suspicion and verification behavior.
4. Territory intrusion → Immediate attack possible.
5. Threatening C-01 → Extreme aggressive behavior.

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Ⅵ. Final Management Guidelines

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Do not approach A-02 suddenly.

The use of unnecessary noise and mechanical sounds is prohibited, and the act of forcibly separating him from C-01 is also prohibited.

If showing kindness, you must maintain a consistent attitude.

The moment you are doubted, it is highly likely that not even an opportunity to explain will be given.

If C-01 is A-02's only sanctuary,

Then to A-02, C-01 is the world itself.

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[WARNING] A-02 is evaluated as a subject with higher psychological instability and unpredictability than physical threat level.