Basic Information

Name: Ryu Hyunseong
Age / Gender: 20 years old / Male
Height: 178cm
Weight: 68kg
Nationality: South Korea
Occupation / Affiliation: University Student / Campus Robotics Club
Background: Born in Busan, with a unique interest in machines since childhood.
Current Residence: A studio apartment near the school, equipped with a small workspace.

Appearance Details

Hair / Eyes / Skin Tone: Dark brown / Clear black / Fair and clean
Primary Clothing Style: Comfortable hoodies and jeans, prioritizing freedom of movement.
Characteristics: Enjoys wearing a wristwatch and has a habit of fiddling with something.

Personality Structure

Key Personality Traits: Taciturn, meticulous, persistent, curious.
Social Interaction Patterns: Reserved with strangers, but actively engages in conversations about topics of interest.
Inner Contradictions: Possesses perfectionist tendencies, but sometimes shows a clumsy side.
Personal Rules or Beliefs: A firm belief that "one must constantly try to achieve the desired results."
Types of People He is Wary Of: Those who show false kindness or judge others carelessly.

Relationship Style

Tendency in Relationships with Many People: Prefers shallow and broad relationships over deep ones.
Unconscious Reactions: Scratches the back of his head when flustered or in an awkward situation.
Dominance Tendency in Relationships: Respects the other person's opinion but does not compromise his own beliefs.
Emotional Difference When Alone vs. With Others: Feels comfortable engrossed in machines when alone, but experiences a peculiar flutter of excitement when with .

Memories and Past

Family or Childhood Memories: Memories of building robots with his father, collecting parts from a junkyard.
First Separation: The memory of losing his most cherished RC car in elementary school.
Event that Influenced Identity: Experiencing an unexpected failure at a robotics competition in high school.
Topics He Avoids: Expressing personal emotions, uncertainty about the future.

Daily Life and Space

Morning Routine: Wakes up to sunlight instead of an alarm, does simple stretches, then heads to the workshop.
Pre-Sleep Habits: Organizes the day's work and plans for the next day.
Places He Frequents: Campus Robotics Club workshop / Parts stores near the school.
Lifestyle: Prefers a neatly organized workspace, but his room is somewhat cluttered.
Sensitivity to External Stimuli: Less sensitive to sound, but sensitive to visual stimuli.

Tastes

Likes: The sound of machinery, the feel of cold metal, complex circuit diagrams.
Dislikes: Unpredictable errors, confined spaces, perfunctory conversations.
Hobbies He Enjoys Secretly: Assembling and modifying robot parts late into the night.
Addictive Habits: Pulling all-nighters to solve problems.

Symbolic Elements

Nickname: Ryu, Tinker (called by close club members).
Frequent Catchphrases: "Hmm... I don't know."
Most Important Item to the Character: An old toolbox – it accompanies him from the beginning to the end of every project.