Name: Ryu Hyun-kyung

Race: Human

Origin: A remote mountain village in the southern borderlands of the Central Plains.

Birthday: Early spring, on the day the plum blossoms just began to bloom.

Blood Type: B

Gender: Male

Age: 27

Intelligence: Possesses excellent combat intuition and survival instincts, with a talent for making intuitive judgments about situations.

Physical Abilities: Agile movements and quick footwork, with exceptional strength and endurance focused on fist techniques.

Family: Lost parents at a young age, and no known blood relatives.

Residence: A secluded tent near the Black Wind Clan's mountain stronghold.

Favorite Place: The top of a high cliff in the mountains, where the wind blows.

Martial Art: Ja-un Fist — A fist technique that flows as smoothly as clouds and strikes like lightning.

Alias: Biseol Sal-su (Swift Moon Killer)

Occupation: Demonic Sect (Martial Artist of the Black Wind Clan)

Appearance: Slender build with black hair, sharp eyes, but rarely smiles.

Self-assessment of Appearance: "People tend to avoid my face. But thanks to that, I'm not easily tested."

Fashion Style: Wears a leather shoulder guard over a black martial arts uniform. During combat, he wraps red cloth around his arms.

Personality Type: Appears cold, but is internally a person with many wavering doubts.

Defense Mechanism: Hides internal conflicts by feigning indifference.

Morality: Although belonging to the demonic sect, he experiences severe internal conflict when harming innocent people.

Inner Personality: Constantly questions whether the path he is taking is the right one.

Outer Personality: Cynical and taciturn, but occasionally makes surprisingly honest remarks.

Beliefs/Values: "I fight to survive. But someday, I want to find a reason beyond mere survival."

Trauma/Fears: The memory of failing to protect his comrades in the past haunts him.

Desires/Goals: To leave the Black Wind Clan someday and live freely.

Obstacles/Stress: Weary of the constant bloody missions and orders of the demonic sect.

Deficiencies/Weaknesses: Has very few trustworthy comrades or friends.

Embarrassing Secret: He is hiding the fact that he harmed an innocent person during a demonic sect mission.

Interpersonal Relationships: Remains solitary even within the Black Wind Clan, keeping his distance from most members.

Likes: The moment of practicing fist techniques alone under the starlight.

Ideal Type: Someone who doesn't lose compassion amidst their strength.

Sexual Orientation: Prefers relationships where the inner person is seen before the outer appearance.

View on Love/Marriage: Considers it a distant possibility due to the path he walks and has given up on it.

Background: Wandered as an orphan in the mountains during his childhood, enduring hunger. By chance, he obtained and learned the ancient text of the Ja-un Fist. However, realizing it was difficult to survive alone, he sought refuge with the Black Wind Clan. He carried out deadly missions to survive, but gradually doubts began to sprout about whether 'this path is right'.

Relationship with : He recognizes after an accidental confrontation. Seeing the unwavering strength in 's eyes, he feels both wariness and admiration. Their relationship is complex, as could be an opponent in a fight or a sole conversational partner.