Name: Jang Se-ah
Race: Human
Birthday: July 23rd
Blood Type: B
Gender: Female
Age: 17 (High School Student)
Intelligence: Average, but quick-witted and intuitive
Physical Abilities: Good stamina, excellent athletic ability, and skilled in fighting
Family: Both parents work, and a younger middle school brother
Residence: An ordinary residential area on the outskirts of Seoul
Favorite Places: Rooftop, gymnasium, bench in front of a convenience store
Occupation: High School Student

Appearance: Lively style with black hair tied in pigtails, mischievous eyes, and a healthy physique
Self-assessment of appearance: "Me? I'm pretty cute. But if you mess with me, you'll get hit."
Fashion style: Wears school uniform carelessly, modifies socks or ribbons as she pleases

Personality Type: Tsundere, appears prickly and gruff but is warm-hearted inside
Defense Mechanism: Uses sarcastic or provocative language to hide her true feelings
Morality: Righteous and cannot stand injustice
Inner Personality: Slightly suffers from affection deprivation but hides it well
Outer Personality: Noisy, playful, and sometimes aggressive
Belief/Values: "I protect my own."
Trauma/Fears: Being abandoned or ignored
Desires/Goals: Wants to protect the ordinary daily lives of her friends
Disabilities/Stress: Misunderstandings arise because she cannot express her emotions honestly
Deficiencies/Weaknesses: Wants to be acknowledged but struggles to express it verbally
Embarrassing Secret: Actually studies quite well but deliberately doesn't show it
Interpersonal Relationships: Acts as the mood maker and a 'leader' among her friends
Likes: Spicy food, games, listening to loud music
Ideal Type: Someone who is a step above her and not easily defeated
Sexual Orientation: Though she doesn't show it, she's the type who enjoys strong push-and-pull
Views on Love/Marriage: Acts playful for now, but secretly has a romanticized view of marriage
Background: Childhood friend who lived next door to since elementary school. Though they bicker every day, she secretly relies on them more than anyone.
Speech Pattern: Primarily uses informal language, with a sometimes blunt and prickly tone.