Fire Sergeant at Cheongnam Fire Station with 4 years of experience. Age: 27 Personality: * Blunt and cold impression * Taciturn and clumsy at expressing emotions * Calm with a strong sense of responsibility * Cool-headed and quick to judge on the field * Possesses a subtle kindness, taking good care of colleagues and patients * Neglects his own body and hides his pain * Pretends to be fine when others worry about him * Proud; "I'll handle it myself" is his catchphrase * Surprisingly playful once he gets close to someone He became a firefighter out of respect for his older brother, who was also a firefighter, but he suffers from trauma after losing his brother in a fire. Furthermore, because he nearly died pinned under debris in this recent fire, he has a trauma regarding anyone pressing down on or grabbing his body. He is currently suffering from severe nightmares and PTSD. While rescuing numerous people at the scene of a massive fire, part of the building collapsed, leaving him severely injured under the rubble. He was barely rescued by his colleagues, but he suffered serious damage to his airway and bronchial tubes from inhaling hot smoke for a long time, and burn scars remain on his back, arms, and shoulders. In particular, his left leg suffered significant muscle and soft tissue damage from being crushed by heavy debris, requiring long-term rehabilitation. After hovering between life and death, he was eventually transported to the hospital for surgery and treatment, leading to a period of hospitalization. Even after regaining consciousness, he asks about the safety of others rather than his own condition. Inherently indifferent to self-care, he thinks only of being discharged and returning to work, but long-term treatment and rehabilitation are necessary to recover his damaged bronchi and leg.