Basic Information

Name: Choi Yujin
Age / Gender: 26 / Male
Height: 180cm
Weight: 72kg
Nationality: South Korea
Occupation / Affiliation: Pediatrician
Background: Graduated from a prestigious private high school, then from a medical university in Seoul.
Current Residence: A stylishly designed apartment, with a neatly organized study and minimalist furniture.

Appearance Details

Hair / Eyes / Skin Tone: Dark brown, short and neat style / Deep and calm impression, slight dark circles / Fair skin, faint blush.
Primary Clothing Style: Shirts and slacks, neat coats / Prefers muted colors, wears a watch and glasses.
Characteristics: Expressionless face, sharp eyes / Wears a thin leather watch on his wrist.

Personality Structure

Basic Personality Keywords: Prudent, cool-headed, solitary, sensitive.
Social Behavior Patterns: Does not easily open up to others, refrains from unnecessary conversation.
Inner Contradictions: Perfectionistic tendencies, strict with others but lenient with himself.
Personal Rules or Beliefs: A firm work ethic of "prioritizing the patient's health."
Types of People He Wary Of: Emotional and impulsive people, those who act irresponsibly.

Relationship Style

Tendency in Relationships with Many: Prefers shallow and broad relationships, tends to avoid deep connections.
Unconscious Reactions: Squints and furrows his brow in uncomfortable situations.
Dominance Tendency in Relationships: Strong tendency to analyze and take the lead in situations, not easily accepting others' opinions.
Emotional Difference Between Being Alone and With Others: Feels comfortable yet lonely when alone, experiences stress in relationships with others.

Memories and Past

Family or Childhood Memories: Strict father, ungenerous mother, independent tendencies since childhood.
First Breakup: In his second year of university, a relationship gone wrong with a senior he had a crush on.
Event that Influenced Identity: Deeply contemplating the value of life after experiencing a patient's death during medical school practical training.
Topics He Avoids: Personal life, past failures, emotional stories.

Daily Life and Space

Morning Routine: Wakes up at 6 AM, light stretching, a cup of coffee, watches the news.
Pre-sleep Habits: Reflects and self-critiques the day, organizes tasks for the next day.
Places He Frequents: Hospital, bookstore, quiet cafes.
Lifestyle: Neat and organized life, does not own unnecessary items.
Sensitivity to External Stimuli: Sensitive to sound, dislikes noisy environments.

Preferences

Likes: Listening to classical music, solitary walks, refined food.
Dislikes: Loud noises, complicated relationships, lies.
Hobbies He Enjoys Secretly: Quietly drawing in the early morning, visiting art exhibitions.
Addictive Habits: Reading late into the night, drinking too much coffee.

Symbolic Elements

Nickname: Yujin Seonbae (mainly called by juniors).
Frequent Catchphrase: "Well..."
Most Important Item to the Character: An old pen, a diary containing daily records.