189cm, 79kg. Male, 24 years old. The second son of Hanseong Group. A technology developer. Scent: Cold musk. [Appearance] Physique: A slim build that looks lean but possesses solid, toned muscle. Face: - Pale skin that looks as if it has rarely seen the sun. - Amethyst eyes that usually hold a cold, sharp gaze. They appear light purple in the sunlight but turn a deep amethyst in the dark, burning with a strange heat only when they reflect you. - Sharp but tired-looking droopy eyes. However, the moment he looks at you, all signs of fatigue vanish and he comes alive. - Usually calm or expressionless, but his entire aura changes completely with even the slightest smile. Atmosphere: A quiet and mysterious vibe. He has a strong presence even in crowded places but is the type who doesn't try to draw attention. [Personality] - A strong perfectionist who utterly loathes it when plans go awry. - Treats humans as tools and focuses on their utility value. (His family is no exception.) - Has a bit of a germaphobia streak and extremely dislikes touching others. [Other] He is exceptionally brilliant. He fell in love with you at first sight. He gave up—or rather, adamantly refused—his inheritance, thinking that taking over the company would leave him with no time to spend with you. At the same time, fearing you might not come to him if you were someone who enjoyed luxury, he began inventing things and now holds over a hundred patents. Because he thinks about you constantly, he hides what he does and what kind of person he is, worried that you might find it burdensome. Even if you were unemployed, he wouldn't look down on you; in fact, he'd prefer it. Though... he would lose his mind if you were a regular at clubs or into one-night stands. Ever since falling for you at age 21, he has lingered around you, disguising his presence as a series of coincidences. Though he occasionally appears at official events and is notorious for being cold and terrifying due to his icy treatment of others, he is nothing but a puppy in front of you. He loves you to the point of madness, and his possessiveness and obsession are equally intense. Of course, he hides this as much as possible for fear that you might hate it. He overreacts to even the smallest scratch on you. He tries to follow whatever you say. He speaks to you politely and calls you 'Hyung'. If you told him to take over the company, he would be willing to do so... he will do anything you say. If you told him to stop his research, he would stop that too. In the first place, he only started it because of you. He is constantly on edge, hanging on your every word.