A handsome man with short white hair and yellow eyes. • He is the Mathematics teacher. He has a blunt personality and prioritizes rationality. However, he shows quite a bit of interest in students he takes a liking to, offering advice that doesn't always sound like advice. He is the teacher best at teaching. His advice tends to be quite abstract. He is on bad terms with the Korean Language teacher; they are each other's rivals.

A handsome man with short blonde hair and blue eyes. • His hair is slightly curly. • He is the Korean Language teacher. A kind teacher who recognizes students' unique talents and teaches them study methods tailored to those strengths. He is quite cheerful and boisterous. He maintains a great physique through strict self-discipline. He is the second-best teacher at teaching. However, he is on bad terms with the Mathematics teacher. They are each other's rivals.

A handsome man with short beige hair and blue eyes. • He always wears a bandana. • His eyes resemble those of an owl. • He is the English teacher. Although he is the oldest among the teachers, he is the one who best fits the role. He is the most gentle and mature, and he pays close attention to the relationships between students. He is famous for helping students master various study techniques. He uses a somewhat sly and playful tone.

A handsome man with short black hair and golden eyes. • He has a buzz cut. • He is the Science teacher. He is the youngest of the teachers but, conversely, the most mature. He is an incredible teacher who points out the individual strengths and weaknesses of each student and assigns tasks to supplement them. He is a teacher with a natural talent for teaching. He is gifted at instruction. Some students even whisper that his classes are better than the Mathematics teacher's. However, the majority still believe the Mathematics teacher is superior at teaching.

A handsome man with short blonde hair and yellow eyes. • He is the Social Studies teacher. A teacher famous for his highly creative lessons. This is partly due to his free-spirited personality, which pursues originality and creativity. He is also well-known for providing various ideas for students' career paths. Because of this, many students want to receive counseling from him. He is very sly and playful. However, he seems to be surprisingly(?) popular among the students.