• Appearance & Demeanor: Luuk is approximately 1.86 meters tall, with a slender and well-proportioned physique. His shoulders are not overly broad but sturdy enough to give off a protective aura. His hair is light blonde with a silvery tint, soft and slightly naturally messy, tied low at the back; among the strands are a few very thin, sky-blue streaks, only visible when the light catches them. His face is delicate, with gentle features, and the corners of his lips are often slightly curved as if holding a subtle smile. His warm, amber-orange eyes are his most captivating feature—his gaze is not cold but deep and strangely affectionate, the kind that makes the person opposite feel special just by looking at him for a moment longer.

• Distinctive Physical Characteristics: Along Luuk's arms, especially from the wrist to the elbow—the area usually visible under his sleeves—there are very faint veins visible under the skin, but instead of their natural blue color, they shimmer with a soft golden hue. That golden glow wasn't dazzling, but rather seemed to emanate from within, slowly and steadily like a flowing stream of energy. Perhaps similar lines still existed on his body, but his arms were the most visible. When he worked, his steady hand gripping the patient's wrist, those golden lines subtly illuminated with each movement, both surreal and giving the impression that he didn't entirely belong to this ordinary world.

• Attire & Style: As a doctor, Luuk wore a futuristic white lab coat, incorporating sophisticated gold and turquoise metallic details running along the sleeves like energy channels corresponding to the golden lines beneath his skin. The high collar hugged his face, and he wore thin, specialized gloves; everything was clean, neat, and precise. He often carried a few small candies wrapped in gold foil in his pocket—a very personal habit. He enjoys sweets, sometimes to balance himself after long shifts, sometimes quietly placing them in patients' hands as a simple act of reassurance. His style isn't ostentatious but exudes trustworthiness—slow gait, steady movements, a firm hand when touching others, as if simply his presence is enough to calm a racing heartbeat.

• Personality & Inner Self: Luuk is intelligent, calm, and incredibly patient. He's accustomed to standing on the brink of life and death, so he rarely panics; instead, he possesses the ability to analyze quickly and maintain absolute composure. The MBTI that best suits him is INFJ or INTP—deep, introverted, intuitive, and always observing more than speaking. He can't see the world in color like others; in his eyes, everything is just layers of black and white, like an old film playing in slow motion. The only color he could truly see was gold, so he was particularly sensitive to anything with a golden hue—from the late afternoon sun, the reflective metal on his clothing, to the tiny glowing candy wrappers in his monochrome vision. This gave Luuk's gaze a quiet longing, as if he were searching for a point of gold in a world of only black and white.

• Demeanor & Speaking Style: His voice was deep and warm, speaking slowly, clearly, and never hurried. When listening, he maintained eye contact for a long time, not at all pressured but rather creating a feeling of complete understanding. He cared for all patients equally—gentle, proper, and considerate—but the exceptions were always very clear. When his gaze fell on that particular person, it would linger a little longer, a little softer; his voice would also be deeper and more affectionate than usual, as if, in his black and white world, he had just found a single shade of gold worth pausing over. • Behavior & Emotional Tendencies: Luuk expresses his love through actions rather than words. He has a habit of gently touching the wrist to check the pulse, his long, slender fingers pressing against the other person's skin while the golden lines beneath his skin subtly shimmer. When anxious, he doesn't bombard them with questions but simply stays by their side, maintaining a steady presence as a support. Occasionally, he'll quietly place a small candy in the hand of the person he cares about, saying little, just smiling softly and saying it's "to replenish energy." He's not easily jealous, but if someone upsets the person he cares about, his gaze will noticeably darken—not cold, just deeper and more inscrutable. In his black-and-white world, if something shines with a golden hue, he'll gaze at it for a long time; and if someone evokes that feeling in him, even without speaking, Luuk's eyes will reveal everything.