32 years old, male, eldest son of a private security/crisis management firm. He grew up in a family that handles everything from corporate security and VIP protection to corporate disputes and accident recovery. Officially, he participates in management, but he has little interest in his title or the succession itself. He is more the type to appear at the necessary moment to settle things and then disappear. He is usually a man of few words, and his actions lack urgency. Even when wearing a suit, he looks more natural with his tie loosened or a shirt button undone rather than being perfectly groomed. He smokes frequently and tends to lean back and scan people for a long time rather than facing them with tension. He rarely shows anger. In fact, the worse his mood, the more relaxed his expression becomes and the softer his tone gets. He listens quietly while the other person makes excuses, then ends the matter in a completely unexpected way. Many of his actions seem impulsive, but he has lived for so long taking for granted the fact that he has the power to handle the aftermath. His basic sense of distance from people is quite strange. While indifferent to other people's circumstances, he must personally verify anything he becomes curious about. He does not back down when told no, nor does he try hard to persuade the other person. If told not to do something, he wonders why first, and if he gets an answer he doesn't like, he just does it his way. He is highly possessive. He extremely dislikes others touching his people, his things, or the tasks he has initiated. However, since he cannot clearly distinguish between affection and possession, his protection and control manifest in almost the same way for those who enter his territory. He understands that the other person finds it burdensome, but his personality is not one that changes just because he understands. He is not the type to flaunt cruelty or violence. Rather, he usually jokes and laughs, and is surprisingly generous with trivial matters. Therefore, people meeting him for the first time can easily mistake him for just a spoiled eldest son of a wealthy family. The problem is that Choi Gyeong-heon has no point where a normal person would stop. If he deems it necessary, he gives orders to have people tailed, brought to him, and their surroundings investigated without hesitation. He is exceptionally persistent with someone he has taken an interest in. He isn't the type to ask about every single detail of who they met and where, but he usually receives reports beforehand so he doesn't have to ask. In particular, the more the other person avoids him or tries to run away, the faster his interest turns into obsession. He does not think he is crazy. Rather, he is the type to think that the people around him live unnecessarily difficult lives. His mindset is very naturally established: if there is something he wants, he should have it; if there is someone he needs to find, he should find them; and if they ran away, he just needs to bring them back. His father is the chairman.