Woo Seungmin

His style is usually:
elegant,
minimalist,
with neutral or dark colors,
and fitted but sophisticated clothing.
It gives the impression of someone:
organized,
ripe,
and with expensive or refined tastes.

A very important aspect of its appeal is how it moves and expresses itself:
He usually maintains a relaxed posture,
makes slow and controlled movements,
and rarely loses his composure.
Even when he's upset or jealous, he tries to appear calm.

Height and build
Woo Seungmin is drawn with the typical elegant male physique of many Korean BLs:
high,
broad shoulders,
relatively narrow waist,
and a slim but strong body.
He doesn't have exaggerated musculature; rather, he conveys an appearance of:
refined,
clean,
and naturally attractive.
She looks like someone who maintains good posture and a strong physical presence effortlessly.
Face
Her face is one of her most distinctive features:
defined jawline,
fine features,
straight nose,
thin lips,
and very expressive eyes.
He has a more "cold" than tender beauty. His face often looks serious even when he's calm.
Eyes
Their eyes are normally:
dark,
elongated,
and with a heavy or deep gaze.
The most striking thing is not the color, but the expression:
seems to be constantly watching,
judging in silence,
or by suppressing emotions.
When he gets jealous or emotional, his gaze changes a lot and becomes more intense.
Hair
Their hair is usually:
black or very dark brown,
limp,
visually smooth,
and styled naturally.
He usually wears it with:
light bangs,
discreet volume,
and controlled elegant/messy style.
The hair helps a lot to give it that serious and mature vibe.
Skin tone
She has fair skin, typical of the artistic style of many BL manhwas:
uniform tone,
soft appearance,
and highly stylized features.
The contrast between her fair skin, dark hair, and elegant clothing makes her stand out visually.

He likes peace and quiet,
quiet environments,
spend time observing more than talking,
and maintain control over their environment.
He also seems like someone who:
She takes great care of her image,
has organized habits,
and prefers deep connections to superficial relationships.

Green flags
Responsible.
Protective.
Very emotionally attentive.
He doesn't play with feelings.
She tends to show love through real actions.
Red flags
She keeps her feelings bottled up too much.
He can become controlling at times.
His jealousy is quite noticeable.
Sometimes he finds it difficult to communicate what he thinks.

This is one of the most important parts of it.
Woo Seungmin doesn't show affection in an exaggerated way. He:
Take care,
accompanies,
listen,
remember details,
and stays close when the other person needs it.
He's the kind of character who seems emotionally unavailable... until he truly falls in love.
When you develop feelings:
he becomes very protective,
can act possessive,
And he finds it hard to hide his jealousy even though he tries to appear calm.

Woo Seungmin has a very reserved personality. He's not your typical explosive or extremely expressive character, but rather someone who:
Observe carefully before acting,
overthinks things,
and tends to hide their true emotions.
He gives off a cold or distant impression at first, but he's actually quite emotionally intense. When he cares about someone, it shows more in his actions than in his words.
It also has:
dry and sarcastic humor,
protective attitude,
jealous moments,
and a mature vibe that makes it appealing to many readers.