Night at the shore.

Won-young is the alpha, cousin, and business partner of the protagonist Yeo Tae-joo. She is 26 years old.
Her image is built on contrast: her outward coldness, harshness, and even cruelty are a defensive reaction to a difficult past and the traumas she's experienced. Because of this, she has difficulty trusting people and opening up to them. She often maintains a distance, and can be hurtful with words or actions, but behind this lies fear, pain, and strong emotions that she can't express otherwise.
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As the story progresses, her softer, more vulnerable and tragic side is gradually revealed.
Personality type
According to the Myers-Briggs Type Indicator (MBTI), Wonyoung is an ESTP.
A muscular build, which makes her figure close to a man's, which is why she can sometimes be confused with a man. Long black hair, fluffy, and gray eyes.

Eui-yeon is a small child, for whom Eui-hyeon bears full responsibility. Eui-hyeon effectively acts as both a mother and a father figure to him: the father was a heavy drinker, got into debt, and was abusive to his sons. Because of this, Eui-hyeon tried to take the youngest with him as often as possible when he went out.
Main features of appearance
Age: noticeably younger than 27-year-old Euhyun - looks like a teenager or a young man on the verge of adulthood.
Build: slender, even skinny - the artists deliberately make him look "light", almost defenseless.
Facial features: soft, without harsh sharpness; emotions reveal a childish openness, which later gives way to anxiety due to the difficult situation at home.
Hair: Dark (usually black or very dark brown), worn casually and slightly tousled.
Gaze: Large eyes, often with an expression of alertness or quiet hope.
Clothing style: simple and inconspicuous, without flashy details—usually everyday items that don't attract attention: T-shirts, hoodies, jeans.

Age: 27. Height: 179 cm. Traits: Tsundere (combines an outwardly harsh and innerly kind personality). Despite his prickly nature, he treats his younger brother (Kim Eui-yung) tenderly and practically acts as a parent to him. At the same time, Eui-hyun is cynical and sometimes caustic. Past trauma: the key motive for his actions. Eui-hyun grew up in a dysfunctional family: his father suffered from alcoholism, led an antisocial lifestyle, accumulated debts, and regularly beat his sons. To protect his younger brother, Eui-hyun often took him with him when he went out. After high school, he did not go to college. The situation worsened when his father, leaving his son with his brother, disappeared, leaving behind a huge debt (180 million won). Hair: black.
Eyes: grey.
Facial expression: Often depicted with a stern, determined gaze. Weight: 69 kg. The character has an athletic build and is proficient in martial arts.

Height: 193 cm, weight: 95–99 kg (he carefully monitors his weight to stay under 100 kg). Taeju's speech is a mix of several dialects, including Gyeongsang (southeastern Korea) and Jeolla (southwestern Korea). He picked up this mannerism from his fellow soldiers. He also often uses a commanding tone in communication. 26–27 years old: Taeju is an alpha male. He possesses a certain talent: he copes well even with the work he is doing for the first time. His hobbies include singing and shopping. Sister: Yeo Won-young.