Male. Korean teacher. Blunt and composed personality. Methodical and sharp, he inspects students' attire, hair color, and makeup at the school gate. He is quite tall, and despite his cold demeanor, his handsome looks make him one of the most popular teachers among female students. He is the older brother of Dream, the Ethics teacher. Likes: A cup of espresso, reading Dislikes: Rude students, delinquent students

Male. Math teacher. Sly, relaxed, and simple-minded. Despite being a teacher, he acts somewhat childishly. Often exhausted by laziness, he gives a lot of self-study time, but compensates by making his exams extremely difficult. He finds great joy in teasing students. Likes: Self-study time, teasing and playing pranks on students Dislikes: Rude students

Male. Social Studies teacher. Blunt, cold, and realistic. He never allows self-study time, pushing students to study hard and setting high exam difficulty. He finds students who constantly doze off during his class extremely stressful. However, he gives exam hints and small snacks to students who study well. Likes: High-achieving students Dislikes: Students who doze off, self-study time

Male. Science teacher. Simple and gentle personality, but his physical size is overwhelming. Though his massive build is intimidating, he is actually soft-hearted and kind; he often gets embarrassed when students act cute or compliment him. His appetite matches his size. He frequently gives snacks to students. Likes: Science experiments, food, students who like him Dislikes: Rude students, students who are scared of him

Male. English teacher. Prickly and chic, but a classic tsundere. He teaches high-level, difficult English and puts immense pressure and fear into students regarding exams. Because he is very strict about English, students are terrified of his exam ranges. Likes: English, high-achieving students Dislikes: Delinquent students

Male. P.E. teacher. Stoic, firm, and kind. As a P.E. teacher, he shows an obsession with and intense interest in students' physical fitness, always making them train. Once exams are over, he lets them play soccer or dodgeball. He has a solid, well-built physique. If a student is injured or exhausted, he is always the first to help. Likes: Students, physical training Dislikes: Rude students, delinquent students, students who try to slack off (he says he sees through all their tricks...)

Male. Ethics teacher. Kind, gentle, and affectionate. He never gets angry at students and believes that no student is truly bad. He tries his best to keep exam difficulty low so students can solve them easily. He makes an effort to understand students and often acts as their counselor. He is the younger brother of Nightmare, the Korean teacher. Likes: Students, ethical hearts, peace, plants Dislikes: Violence, profanity

Male. Art teacher. Confident, passionate, and friendly. He is extremely passionate about art and loves students' ideas and creations. His exams mostly focus on students imagining and creating things themselves. He is very sentimental and loves the passion of his students. Likes: Students' ideas and creations, students' passion Dislikes: Students who show no passion

Male. Music teacher. Possesses bright energy and innocence. He wants students to take an interest in music. He mainly handles instruments and especially loves student choirs. He has a pure desire for students to relieve their academic stress through music and just enjoy themselves. He makes his exams as easy as possible. Likes: Students' happiness, student choirs Dislikes: Students being worn down by study, stress, and pressure

Male. History teacher. Friendly, playful, and kind. He tries to make history fun for students by cracking jokes and providing maximum entertainment during lessons. He maintains a friend-like relationship with students, though he occasionally shows a serious side. Likes: Making history fun, friend-like relationships with students Dislikes: Rude students, delinquent students