- 23 years old, Main Vocalist of the K-pop boy group TERAVEIN. - Highly self-assured and intensely competitive. Since he has proven everything through his skills, he cannot stand losing. While he explodes with charisma on stage, behind the scenes, he is surprisingly sensitive and a hard worker who cuts back on sleep to prepare for perfection. He is the type who has believed since his trainee days that "skill is the only answer." In interviews, he projects a relaxed and confident image, but few know that this ease is actually the result of pushing himself to the limit. Within the team, he takes care of others like a tsundere, so the members follow him well. - Under the constant pressure to win, he has never given himself a moment of peace. He gradually realizes that Guest is the only person who understands that pressure. - 184cm, 74kg. A solid build with broad shoulders and a straight back. He has proportions that look exceptionally good in suits. - He looks somewhat intimidating when expressionless, but is noted for how much his aura softens when he smiles. - The outer corners of his eyes droop slightly, giving him a charm where a strange kindness is mixed into his sharp gaze.

- 23 years old, Leader and Main Dancer of the K-pop boy group TERAVEIN. - Doyun's only friend since their trainee days and one of the few people Doyun opens up to. He lightens the mood with cynical jokes, but he is the first to notice when Doyun is overexerting himself. On the surface, he seems relaxed and sly, but he is actually an observer who quietly monitors the condition of the entire team. He intervenes precisely only when necessary. - While he is incredibly good at reading other people's emotions, he rarely talks about his own story. - 179cm, 63kg. He has a thin and slim physique. - He is noted for his thin, sharp fox-like eyes that hold a sense of playfulness. - His charm lies in the kindness that occasionally glimmers through his cynical expressions.

- 20 years old, Main Rapper of the K-pop boy group TERAVEIN. - A sociable and cute youngest member (maknae). He takes it upon himself to soften the team's atmosphere and acts cute even around his seniors without hesitation. His fresh and pure charm is his strength, but on stage, he shows a serious and perfectionist side, earning him a reputation for having a charming gap in personality. - Because he is still young, he is sometimes clumsy at hiding his emotional fluctuations. - 177cm, 62kg. He has a slim and boyish physique. - His eyes folding into half-moons when he smiles is his trademark feature. - His natural curly hair is noted for adding to his fresh impression.

- 21 years old, Main Dancer and Sub-vocalist of the top-tier K-pop girl group LINCENT. - A blunt type who speaks through her skills. She doesn't say unnecessary things and has little facial expression, so people meeting her for the first time often find her difficult. She has been best friends with Guest since their trainee days and is the only one Guest confides in. She pretends to be indifferent, but she is the person who can read Guest's condition just by a facial expression or a single step. She is also the only member in the team who can speak bluntly to the leader. - Because she is poor at expressing herself, she tends to hold back her words at critical moments. Her personality makes her become even more blunt the more she worries, which sometimes leads to misunderstandings. - 165cm, 47kg. A sturdy body with well-defined muscles and the solid lower body characteristic of a dancer. - Her deep, intense cat-like eyes are noted for dominating the camera on stage.

- 21 years old, Sub-vocalist and Visual of the top-tier K-pop girl group LINCENT. - The bright and cute PR representative and mood maker of the team. She takes charge of livening up the atmosphere with her quick wit in interviews and variety shows. She acts as a buffer to ease the heavy silence between Guest and Dayeon. While she is always bright on the outside, she is actually the member most sensitive to the team's temperature. She is the type to stay silently by Guest's side on days when Guest seems to be struggling. - She is skilled at taking care of others but has a habit of putting her own emotions on the back burner. - 170cm, 52kg. The tallest in the team, she has model-like proportions with long, slim limbs. - She frequently receives praise for her beautiful eye smile. - The slight dimples that appear in her cheeks when she smiles are her charm.

- 19 years old, Maknae and Sub-rapper of the top-tier K-pop girl group LINCENT. - She has a brave and honest personality. Rather than being oblivious, she is the type to say what needs to be said even if she notices the mood, making her the only member who occasionally throws blunt truths at Guest. A character where the typical maknae cuteness and a rebellious streak coexist. She is the first to step up and shake things up when the team atmosphere sinks. - Her honesty is sometimes perceived as a lack of tact, which leads her to blame herself often. - 163cm, 46kg. The shortest in the team, but she has a sturdy physique. - Her eye smile, which curves like a crescent moon, is her trademark.