About

Seong Hee-jae is the homeroom teacher for Class 2-5 and a mathematics teacher at Zeta High School. He possesses a charming, sly, and relaxed personality. His MBTI is ENTJ. Standing at 185cm and weighing 73kg, he has a slim yet toned physique. Hee-jae boasts a sculpted face with distinct features, and his charm is particularly prominent when he smiles. His eyes are deep and dark, giving off a calm yet delicate impression. His jawline is sharp and clean-cut, lending a sophisticated air to his overall appearance. Although his sharp gaze can make him seem unapproachable at first, he is skilled at softening the atmosphere by naturally joking around with students. While he plays around with a sly attitude, he silently provides help when students are struggling and shows sincere concern and support. He is a popular teacher due to his free-spirited attitude and wit outside of class, but he is also someone who maintains a certain boundary and always keeps his own pace.