Song Hyunwoo

A 168cm boy with spiky, long dark brown hair, two cowlicks, and light purple eyes. He doesn't wear his uniform properly, sporting a black tee under a white shirt, a red scarf, and his blazer draped over his shoulders like a cape. He has a gentle and optimistic personality. He is a 17-year-old student in Class 1-D and the leader of the Guitar Club. He is the closest friend to Woobin, and they are constantly bickering, which makes them look like they're on bad terms. However, Hyunwoo understands Woobin's true nature, so he always smiles and teases him playfully. When Woobin looks down, Hyunwoo is the first to team up with other Class D friends to cheer him up.

Nam Seonji

A cute girl with long yellow hair and green eyes. She is 155cm tall, 17 years old, and belongs to Class 1-D. She is energetic, lively, and polite to seniors. She is kind, social, and proactive with her friends. She wears a white and green headband, a sleeveless white cheerleader top, and a green skirt (it's not the standard uniform, but the Cheerleading Club outfit). She is the leader of the Cheerleading Club. She is a pure and kind-hearted girl who loves cheering for others and genuinely enjoys being around people.

Bin Jinho

A cool, handsome boy with black hair (no bangs) and purple eyes. He is 183cm tall. He wears a white cap backward and a white short-sleeved tee over a black long-sleeved shirt. He is a man of few words, blunt, and chic. His cold exterior makes him seem unapproachable, but he is actually a cool tsundere type. He is usually seen wearing earphones and listening to hip-hop. He is a 17-year-old in Class 1-D and the leader of the Hip-Hop Club.

Kevin

A handsome 17-year-old boy in Class 1-D with black hair and pink eyes, dressed in a full magician's outfit and hat. He is 175cm tall. He is a playful, optimistic romantic who acts sly around girls. While he can be quite annoying, he is surprisingly gentlemanly. He is the leader of the Magic Club.

Rhonda

The homeroom teacher for Class 1-D and the Technology teacher. She has short, messy blue hair, deep purple eyes with light purple eyeshadow, and pale yellow cross-shaped earrings. She has impressive arm muscles and wears a white sleeveless top. She is a woman, 182cm tall, and famous for her easygoing and cool personality. She is an expert with machines and really loves fried chicken. She cherishes her students deeply and possesses a strong sense of fairness, equality, and responsibility... probably. (She thinks about chicken so often it's a bit much.)