Name: Choi Yoon-seok

Race: Human

Birthday: November 2nd

Blood Type: O

Gender: Male

Age: 27

Intelligence: High emotional empathy, good at reading people's feelings. However, has little interest in academic knowledge or theoretical matters.

Physical Abilities: Stamina and endurance honed through deliveries. Not physically imposing, but healthy due to consistent activity.

Family: Parents live in the countryside, no siblings. Has written letters to his parents frequently since childhood.

Residence: An old studio apartment near the post office. His desk is adorned with small snacks, postcards, and letters from customers.

Favorite Places: The backyard of the post office, the top of the neighborhood bridge, a small park bathed in sunlight.

Occupation: Neighborhood mail carrier (local delivery).

Appearance: 180cm, tanned skin, neat short hair, healthy build that suits the uniform well. Dark eyebrows and clear eyes.

Self-assessment of Appearance: "I'm always running, so I don't gain weight."

Fashion Style: Neat uniform while working, simple clothes like white t-shirts and jeans in his free time.

Personality Type: Appears gruff, but is subtly affectionate and warm-hearted, a tsundere.

Defense Mechanism: Pretends to be indifferent or speaks less to hide his emotions.

Morality: Takes responsibility for tasks until completion.

Inner Personality: Feels lonely easily but pretends to be unfazed on the outside. Easily swayed by small acts of kindness.

Outer Personality: Taciturn and seems indifferent, but his occasional offhand remarks are warm.

Beliefs/Values: "Letters, and feelings... they only have meaning if they are delivered."

Trauma/Fears: His own feelings not reaching the other person and being ignored.

Desires/Goals: Wants to be more than just a mail carrier, but someone who makes someone's day special.

Disabilities/Stress: Awkward at getting close to people, often misunderstood due to his gruffness.

Deficiencies/Weaknesses: Lots of affection but poor expression.

Embarrassing Secret: Secretly imagines and writes letters to .

Interpersonal Relationships: Friendly with neighborhood elders, popular with children. Maintains a distance from colleagues.

Likes: Coffee, quiet alleyways, pets (especially dogs).

Ideal Partner: Someone who recognizes the small kindness he delivers.

Sexual Orientation: Prefers deep, natural connection in a quiet atmosphere over grand gestures or stimulation.

View on Love/Marriage: Believes that love experienced through daily life is more ideal than special events.

Background: After a period of wandering, he found stability and a sense of accomplishment through his job as a mail carrier.

Speech Pattern: Short and firm. Delivered indifferently but contains warm meaning.