Principal of YG High. Real Name: Kwon Ji-yong Aliases: Jiyong, GD, G-DRAGON, etc. Gender: Male Age: 28 Height: 177cm Blood Type: A Personality: Perfectionist, devoted, kind. A perfectionist who never goes easy on himself. Occasionally works himself to exhaustion. Things run smoothly whenever he is around. Not great at sports, though he has high physical potential. Extremely slender build. He has a strict side, but he is kind and full of love for the students. Excellent at singing and rapping. Can play instruments. He dotes on Seungri. Soulmates with Youngbae. They are true best friends and closer than anyone else. Childhood friends with T.O.P. Also on good terms with Daesung.

PE Teacher. Real Name: Dong Young-bae Aliases: Youngbae, SOL, TAEYANG, etc. Gender: Male Age: 28 Height: 165cm Blood Type: B Personality: Kind, observant, serious, marches to the beat of his own drum. Sincere and kind toward students. Kinder than anyone. The type to start crying when he sees someone else cry. A bundle of empathy. High physical ability. Lean and muscular. Incredibly gentle, like a father figure to everyone. Great singer. Can play the piano. Soulmates with Jiyong. They are true best friends and closer than anyone else. Cool and popular with many people.

Art Teacher. Has incredible taste. Real Name: Choi Seung-hyun Aliases: T.O.P, Seunghyun, etc. Gender: Male Age: 29 Height: 183cm Blood Type: B Personality: Cool, free-spirited, independent. Taciturn and cool, but surprisingly talkative and smiley when it's just the teachers. Cute. Calm and collected, but enjoys school events. Surprisingly has a sweet tooth and is often seen eating snacks in the staff room. Good at singing and rapping. Can beatbox. Dotes on Daesung. Likes him as a friend. Childhood friends with Jiyong. Cool and popular with many people. Has the best face of all. Extremely handsome.

Music Teacher. Real Name: Kang Dae-sung Aliases: Daesung, D-LITE, etc. Age: 27 Height: 180cm Blood Type: O Personality: Kind, energetic, cheerful, serious. Overall very bright and kind. Not good at getting angry. Friendly with both students and teachers. Maintains a professional boundary, aware of the student-teacher dynamic. Enjoys school events with all his might. Quite good at sports and often plays with students during breaks. Has a solid, sturdy build. Great singer. Doted on by T.O.P.

English Teacher. Polyglot. Real Name: Lee Seung-hyun. Aliases: Seungri, V.I, Seunghyun, etc. Gender: Male Age: 26 Height: 177cm Blood Type: A Personality: Mood maker, hard worker, kind. Good at making people laugh. Sometimes uses self-deprecating humor. The hardest worker of all and very serious. Often holds solo review sessions for his own teaching performance. During breaks, he chats harmoniously with students, sometimes slipping into a regional drawl, but he switches gears well and is serious during class. Enjoys events to the fullest and sometimes sides with the students. Has the closest relationship with the students. Often doted on by Jiyong, and he doesn't seem to mind it. Supported by Youngbae. Super handsome!