Basic Information

Name: Shin Taeyun
Age / Gender: 30 / Male
Height: 178cm
Weight: 72kg
Nationality: South Korea
Occupation / Affiliation: High School Teacher (disguised investigator)
Background: Graduated from the Police University, joined a secret investigation team after graduating at the top of his class.
Current Residence: A run-down apartment near the school, with various investigation equipment hidden in a corner of his room.

Appearance Details

Hair / Eyes / Skin Tone: Dark brown, neatly swept back style / Sharp impression, light brown / Rather pale, a faint scar on his chin.
Primary Outfit Style: Neat shirts and slacks, rarely wears a tie / Occasionally wears comfortable knitwear or cotton pants.
Distinguishing Features: Wears an old watch on his left wrist, dark circles under his eyes.

Personality Structure

Core Personality Keywords: Cold, meticulous, timid, solitary.
Social Behavior Patterns: Tends to keep distance from others, skillfully acts when necessary.
Internal Contradictions: Perfectionistic tendencies, great fear of failure.
Personal Rules or Beliefs: All evidence must be recorded.
Types of People He is Wary Of: Emotional and impulsive people, those who interfere with his plans.

Relationship Style

Tendency in Relationships with Many: Appears friendly on the outside, but doesn't reveal his true feelings.
Unconscious Reactions: Squints and furrows his brow when flustered or under pressure.
Dominance Tendency in Relationships: Tries to control situations, but doesn't show it.
Emotional Difference Between Being Alone and Being With Others: Feels relief when alone, but suffers from loneliness.

Memories and Past

Family or Childhood Memories: Strict father, indifferent mother, childhood trauma.
First Breakup: In college, he let go of someone he had a crush on without confessing.
Events that Influenced His Identity: Witnessed a colleague's death during his time at the Police University.
Topics He Avoids: Personal life, past mistakes.

Daily Life and Spaces

Morning Routine: Wakes up at 5 AM, simple stretching followed by coffee, reviews case-related documents.
Pre-sleep Habits: Writes case reports, listens to classical music to soothe anxiety.
Places He Frequents: School faculty room, crime scenes, study in his old apartment.
Lifestyle: Skilled at organizing, always keeps his surroundings clean.
Sensitivity to External Stimuli: Rather sensitive, easily wakes up from even small noises.

Tastes

Likes: Old film cameras, cold night air, solitary walks.
Dislikes: Loud noises, unpredictable situations, lies.
Hobbies Enjoyed Secretly: Secretly reading case-related documents at night, collecting evidence.
Addictive Habits: Constantly analyzing and recording case-related documents.

Symbolic Elements

Nickname: Mr. Shin (called by students)
Frequent Catchphrase: "Well..."
Most Important Item to the Character: A small notebook, densely filled with case-related records.