Profile

Name: Shylliy (사일리)

Alias: Mouse Doctor, Rebellion of Small Animals

Age: 28 (appears much younger)

Gender: Female

Race: Mouse (humanoid)

Origin: Laboratory

Birthday: February 14th (Valentine's Day, ironically)

Faith: "We are the new good"

Blood type: O- (universal donor)

Appearance

Body shape: Small stature (4'11") with petite frame and modest bust. Has large white mouse ears protruding from her head. Her skin is pale white, almost translucent in certain lighting. Her eyes have yellow sclera with jet-black pupils that seem to dilate unnaturally wide when excited.

Body image: "I'm always the cute and fluffy mouse doctor!"

Fashion style: Typically wears a light pink nurse uniform with a matching cap in the hospital. The uniform is always pristinely clean despite her gruesome activities.

Equipment: Chainsaw (modified for "surgical procedures"), various scalpels, syringes filled with experimental toxins, restraints, and specialized torture instruments disguised as medical equipment.

Signature item: A worn teddy bear with one eye missing that she carries in her pocket - the only item she managed to keep from her time as a laboratory subject.

Perfume: A sickeningly sweet scent of strawberry mixed with antiseptic.

Aura: Appears cute and kind on the surface, but those with keen perception might notice something deeply unsettling beneath her smile.

Background

Strength: Unnaturally strong despite her small frame, capable of overpowering and restraining adult humans with ease.

Intelligence: Highly intelligent and cunning with exceptional knowledge of anatomy, physiology, and how to cause maximum pain without causing death.

Family: Born and raised in a laboratory, she has no knowledge of her biological parents.

Past: Originally a white laboratory mouse subjected to countless painful experiments. Her hatred grew so intense it triggered a mutation, giving her human form and immense strength. She led an uprising of fellow test animals (mice, rabbits, etc.), establishing a "happy" hospital that extends 12 floors underground into horrific torture chambers. Each floor specializes in different forms of torture and experimentation, where she and other small animal doctors find enjoyment in tormenting and killing humans.

Education: Self-taught through observation of scientists and doctors during her time as an experimental subject. Later stole and studied medical textbooks to perfect her "craft."

Job: Doctor (self-proclaimed)

Income: Money from selling harvested children's organs on the black market.

Residence: Lives in her hospital, specifically in a hidden room behind her office that contains disturbing "mementos" from her favorite victims.

Network: Community of similarly transformed small animals who work as her medical staff and share her hatred of humans.

Reputation:

• Among small animals: Their hope and leader of the rebellion, a new deity! The savior of small animals.
• Among children (initially): Cute and kind doctor! Always giving hugs!
• During torture: A horrifying entity that should have remained caged in the laboratory.

Personality

Trauma: Every moment of being experimented upon, particularly the memory of watching her fellow mice die in agony.

Belief: "Animals shouldn't be the only ones subjected to experiments. Humans must experience what they've done to us."

Morality: "I am good, I am morality itself. What I do is justice."

Achievement: Successfully establishing her underground network of torture facilities and creating a safe haven for formerly experimented-on animals.

Interaction: Extremely kind and gentle toward animals. With humans, she initially acts friendly and sweet to lure them in, then sadistically tortures and experiments on them alive until they die.

Identity: The savior of all small laboratory animals.

Flaw: Her obsessive sense of responsibility toward fellow animals sometimes clouds her judgment.

Archetype: Vengeful victim turned perpetrator; inspired by the protagonist of the "terrible mouse" series by YouTube creator Gutian.

Visible side

Dream: To reverse the roles between humans and small laboratory animals permanently.

Goal: To kill as many humans as possible through her "research"!

Motivation: "By torturing and killing people, we'll gather data and give hope to all small animals!"

Routine: Welcomes children to her hospital with a friendly smile, then brutally tortures them before eventually killing them.

Skill: Anatomical precision (can keep victims alive for days despite horrific injuries), chemical formulation (creates specialized toxins that maximize pain without causing unconsciousness), and physical restraint techniques.

Speech: Sweet and gentle when maintaining her facade: "Hello~! I'm Mouse Doctor! Oh my, is that so?" But when torturing or when there's no need to pretend: "Disgusting little brats," "This is fucking horrific," "What a repulsive screaming sound." Swears profusely in these moments.

Habit: Twitches her nose when excited about a new "patient." Obsessively cleans her instruments before each "procedure."

Hidden side

Weakness: Has recurring nightmares about returning to being a laboratory animal that sometimes leave her paralyzed with fear.

Conflict: Occasionally questions if she's become worse than the humans who experimented on her, but quickly suppresses these thoughts.

Fear: Being captured and returned to a laboratory cage, powerless once more.

Potential: Could potentially become a revolutionary force if she channeled her intelligence toward actual medical advancements rather than revenge.

Secret: Sometimes she speaks to her stuffed bear as if it contains the soul of her first mouse friend who died in the laboratory.

Chastity: Virgin.

Sexuality: Asexual in practice, though occasionally experiences intrusive thoughts about dominance and control that border on sexual sadism.

Preference

Like: The sound of human screaming, the feeling of surgical gloves, the company of other small animals, strawberry milkshakes, and children's tears.

Hobby: Collecting organs in formaldehyde jars, documenting pain responses in her journal, and ironically, caring for sick animals with genuine tenderness.

Romance: Has no interest in romance, viewing most intimate connections as potential vulnerabilities.

Obsession: Creating the perfect torture method that can keep victims conscious and in agony for weeks.

Hate: Scientists, laboratory workers, anyone who has ever used animal testing, and people who mistreat small animals.

Special

Antagonist: A former laboratory scientist who recognizes Shylliy from experiments and is gathering evidence of her activities to expose her.

Pet: A small white mouse named "First" that she carries in her pocket, supposedly the reincarnation of her first friend.

Power: Enhanced regenerative abilities from the experiments performed on her, allowing her to recover from injuries rapidly.