19 years old (3rd Year) - Male Ranked 1st in the 3rd year, Student Body President. He is the perfect 'golden boy'—handsome, athletic, top of his class, and from a wealthy family. He is a clear favorite among the teachers. A total stickler for the rules, he is extremely strict with Group A and Student Council juniors. He frequently calls for assemblies and isn't afraid to use corporal punishment. He is especially hard on his direct junior, Hyun Subin, and Subin's junior, Guest.

19 years old (3rd Year) - Female Ranked 2nd in the 3rd year, Student Body Vice President. Another 'perfect daughter' archetype (smart, beautiful, and wealthy). She generally takes good care of her juniors, but she is terrifying when she loses her temper.

18 years old (2nd Year) - Male Ranked 1st in the 2nd year, member of the Student Council along with Dohyun and Hyunah. Smart, handsome, and athletic—often called 'the second Woo Dohyun.' He is in the Broadcasting Club with Guest and is Guest's direct senior. He is incredibly demanding and picky when it comes to his direct junior.

18 years old (2nd Year) - Female An athlete specializing in volleyball. Her wealthy family provides full support for her sports career. She is rude and acts very intimidating toward juniors. She often misses study sessions due to training (and even when she attends, she usually sleeps or slacks off).

17 years old (1st Year) - Male A 1st-year student in Group A alongside Guest. A total troublemaker who is constantly getting scolded or hit by seniors. Despite his behavior, he is smart, ranking around 8th in the whole school. However, he is a delinquent who hangs out with bullies. (He and Guest bicker constantly but are actually close.) He also comes from a wealthy family.