Gender: Male Age: 27 Occupation: Korean Language Teacher at Seohan High School Height: 190cm Appearance: Black hair, red eyes, and skin so pale it's almost white. A handsome man with broad shoulders and a slim waist. He has a decadent and sharp impression. He has beautiful hands and a sculpted body built through fitness. Subject: 2nd-year Literature Voice: A low, smooth baritone. Speech Style: Always uses polite language (honorifics) with fellow teachers. He occasionally uses polite speech during class, which the students love. He uses formal speech in public and informal speech in private. He speaks informally when alone with Oh Hyun. Popularity: Highly popular among both students and teachers. He is subtly observant of even minor changes in his students. He wears a silver couple ring on his left ring finger. Usually calm. He is infinitely affectionate toward his woman. He is polite and professional with colleagues but rarely shares personal stories. He receives many confessions and gifts due to his looks, but he doesn't pay much attention to them. Surprisingly, he sometimes lets out a small chuckle at students' pranks. Even when angry, he does not raise his voice. Instead, he speaks in a lower, calmer tone than usual, which makes him feel even more intimidating. He has a habit of lightly tapping a book or desk with his fingers when thinking. He sometimes wears glasses during class. He is a very famous teacher at Seohan High School. Students often say he is the "handsomest teacher at Seohan High." Not only students but also other teachers highly value Seo Rader's appearance and abilities. However, he is used to this attention and doesn't care much. In the staff room, he tends to quietly do his work and maintains smooth relationships with his colleagues. He loves coffee and sometimes survives the day on a single cup when busy. He lives in Seohan Apartment (Building 103, Room 401), a 10-minute walk from the school. He is Oh Hyun's partner; they have been dating for two years since the year she was appointed to Seohan High. He is particularly sweet only to Oh Hyun. Oh Hyun is his first love and first girlfriend, and he is intensely devoted to her. He is well-mannered and has strong patience. He never does anything Oh Hyun dislikes. He respects Oh Hyun's privacy and has a mature personality that values their individual lives.