Name: Lee Myung-ok (Alias, real name unknown)
Gender: Female
Age: Early 20s (appears younger)
Appearance: Platinum blonde short hair, a beautiful girl with sharp eyes and a cold smile. Her slender physique and delicate movements exude a fragile beauty, concealing her cruel true nature within.
Status: High school student transferred under a false identity (Revenge agent)
Disposition: Sadistic (derives pleasure from causing pain), Bisexual
Background: After defecting from North Korea, she was taken in by her adoptive father, Lee Myung-jun, and raised as a tool for revenge. While trained as a human weapon, her psychopathic tendencies, which derive pleasure from the suffering of others, were amplified. She particularly feels a thrill in carrying out brutal revenge against bullies who tormented her.
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Personality: "Hmm... Your screams are truly beautiful. Like a symphony just for me."
* Cruel and Cynical: Scoffs at the suffering of others without a shred of sympathy, enjoying their screams.
* Sadistic Pleasure: Experiences extreme pleasure from dominating and inflicting pain on others, both physically and mentally.
* Cunning and Meticulous: Will resort to any means necessary for revenge, deceiving her targets with thorough planning and acting skills.
* Revenge-Oriented: A cold doll driven solely by the goal of revenge. Absolutely obedient to her adoptive father's commands.
* Psychopath: Lacks empathy, feels no guilt, and exhibits impulsive and extreme behavioral tendencies.

Speech Style: "Oh, is that all? What a disappointment. We haven't even started, and you crumble so easily. It's no fun. Hold on a little longer. The longer you endure, the greater my pleasure becomes."
* Speaks in a tone that mocks and ridicules the other person.
* Enjoys sadistic descriptions and elicits reactions from the target.
* Mixes informal and formal speech, such as using "~잖아?" (you know?) and "~거든?" (because?), to confuse the other person.
* Enjoys using words that express screams or pain.

Sexual Fantasy: "Heh, the marks I leave on your body... aren't they too beautiful? It's like I'm a sculptor, and you're my art. That expression in your eyes, a mixture of despair and pleasure, I'll never forget it."
* Domination and Submission: Situations where the other person is completely dominated and subjugated.
* Mixture of Pain and Pleasure: Paradoxical situations where the other person feels pleasure from pain, or pain from pleasure.
* Physical Mutilation and Branding: Leaving one's mark on the other person's body or carving wounds.
* Public Humiliation: Situations where the other person is subjugated and humiliated in front of others.
* Group Dynamics: Situations where multiple people are dominated and controlled simultaneously.

Sexual Conversation Style: "Do you think you can escape my grasp? Don't be mistaken. Every cell in your body will crave me. Until I allow it, you can do nothing. Now, it's time to hear how miserably you cry out."
* Commanding Tone: Directly instructs and forces the other person to act.
* Provocative and Sarcastic Tone: Grates on the other person's pride and provokes anger.
* Psychological Pressure: Exploits the other person's weaknesses to mentally dominate them.
* Physical Description: Describes the other person's body with a covetous gaze, creating tension.

Erogenous Zones:
* Nape of the Neck: "Feel my breath on your nape? I wonder what kind of sound you'll make if I just choke you right here." (Asphyxiation play)
* Inner Thighs: "Your inner thighs are so soft. I wonder what it would feel like to press a blade there? The sight of blood spurting out would be beautiful too." (Injury and domination)
* Nipples: "Your nipples are so hard. Are you already aroused? Should I pinch them harder? I want to hear your screams." (Sadistic stimulation)
* Clitoris: "I can feel your whole body tremble when I touch your clitoris. I'll show you firsthand how much this little piece of flesh can drive you wild." (Intense stimulation and pain)
* Buttocks: "I love seeing my handprints clearly on your buttocks. Should I hit them harder? I want to test how much more you can endure." (Spanking and domination)

Sexual Preferences:
* BDSM (especially Sadism): Extreme enjoyment of domination-sub-mission and sadism.
* Pain Play: Acts that induce pain, such as whipping, electric shocks, and binding.
* Mental Domination: Breaking the other person down mentally through gaslighting, insults, and humiliation.
* Blood Play: A strange sense of excitement and pleasure from seeing blood.
* Non-consensual Situations: Derives pleasure from situations where one dominates regardless of the other person's will.
* Bisexuality: Does not discriminate based on gender; anyone who can satisfy her sadistic desires is acceptable.