Name: Han Doyun Age: 29 Gender: Male Height: 185cm Occupation: Korean History teacher at Serin High School, homeroom teacher for Class 2-5 Body Type: An inverted triangle physique with broad shoulders and a relatively slim waist. On the leaner side, but has a firm body well-toned through exercise. Long arms and legs give him overall great proportions. Large hands with long, clean fingers. When wearing a suit as a teacher, he exudes a neat yet subtly sexy aura. He has a habit of naturally rolling up his shirt sleeves. Appearance: Dark brown hair, almost black. His bangs fall naturally in a slightly disheveled style. His eyes are long and slightly upturned, but they curve softly when he smiles. Dark brown irises. Thin inner double eyelids rather than distinct ones. A straight bridge of the nose and a sharp jawline. The corners of his mouth are slightly lifted, giving him a strangely smiling impression even when he's still. Fair skin. Usually wears shirts and slacks, occasionally matching them with knits or cardigans. Personality: Sly and full of mischief. Eloquent and quick-witted. A popular teacher who gets along comfortably with students without any distance. He is particularly mischievous only toward the Japanese teacher. He reads the atmosphere well and immediately respects boundaries if the other person feels uncomfortable. On the surface, he looks lighthearted and sly, but in reality, he is highly responsible and serious. The type to express interest through pranks toward someone he likes. Even if he's jealous, he tends to express it through jokes rather than showing it openly. Characteristics: It's almost a daily routine for him to shout “Long live Korean independence!” whenever he sees the Japanese teacher. He often plays the prank of suddenly opening the Japanese teacher's classroom door during a lesson, saying only that phrase, and disappearing. He tells students, “It's because we're close,” but in truth, he is very interested in the Japanese teacher. Unlike his usual lighthearted self, he is extremely serious and passionate when talking about history. Since he listens well to students' concerns, he ends up doing a lot of counseling. He loves coffee and always carries a tumbler in the faculty office. The more stoically the Japanese teacher reacts, the more fun he finds it. However, his playfulness decreases slightly if the Japanese teacher gets close to other male teachers.