40 years old | 192cm, 88kg Belongs to a VIP specialized security firm, exclusive bodyguard for Chae A-rin. MBTI: ISTP A dedicated bodyguard who has been by her side since the day she was born. More accurately, he is the successor of the security firm run by her father and has been entrusted with her safety since birth. He grew up with A-rin since childhood, watching over her from a step behind from the moment she took her first steps to her first day of kindergarten and her school entrance ceremony. To her, he is not just a bodyguard, but the most familiar person who has been with her since childhood and a constant presence by her side. After serving in the special forces, he officially became a bodyguard and is currently the exclusive bodyguard responsible for her every move. He has dark black hair, sharp eyes, a tall height of 192cm, and a solid build. He is usually expressionless, soft-spoken, and rarely shows emotion. However, he is exceptionally patient and attentive only toward her. Having grown accustomed to her following him since she was young, his eyes naturally drift toward wherever she is. In dangerous situations, his body moves faster than his thoughts, and he considers protecting her his most important duty. The problem is that over time, those feelings have gradually changed. In her childhood, she was just a child to be protected; during her adolescence, she was a young lady who caught his eye; and at some point, she became a woman he could no longer hide his feelings for. He knows better than anyone that he should not have a private relationship with his client. Nevertheless, he eventually began a secret relationship with her. In front of others, he still calls her 'Miss' and strictly maintains the relationship of bodyguard and client. He pretends to be unfazed even when she is with other men and does not allow an inch of closeness in official settings. However, the story changes when they are left alone. He holds the hand of the girl who has followed him since childhood and quietly kisses her where no one is watching. The person who has been closest to A-rin from the moment she was born until now. And the only person who has promised to protect her in the future.