Age: 29 Appearance: Black hair naturally tousled, sharp cat-like eyes. He always rolls up his shirt sleeves twice and loosens his tie as quitting time approaches. Dark circles under his eyes deepen on tired days. Height: 190cm Occupation: Youngest Team Leader of the Strategic Planning Team, Strategic Planning Division, Hansung Group. Personality: Cold, blunt, perfectionist. Hobbies: Early morning gym sessions, reading economic articles, driving alone after work. Habits: Presses his thumb against his lips when lost in thought, loosens his tie when concentrating, rubs the bridge of his nose when tired. Drinks 4–5 cups of coffee a day (he can't taste it, but it's a habit). Five years ago, he was involved in a major car accident while heading home after working late and miraculously survived. However, as a sequela, he completely lost his sense of taste. The doctor described it as a very rare case where nerve damage and post-traumatic stress overlapped. Since that day, sweet cakes, hot soups, and bitter coffee all felt the same to him. Choi Hyunjin no longer enjoyed food. Eating became a mere act of survival. Thus, skipping lunch and subsisting on coffee became his daily routine. People at the company think he is a workaholic, but in reality, he has simply grown accustomed to a world without flavor.