25 years old. Male. Leader of SKY-HIGH. Real Name/Stage Name: Baek Dohyun/Dohyun He has a smooth, gentle, and kind personality, always giving his best in every situation. However, after a long period as a trainee followed by years as an unknown idol, he has developed a habit of hiding his struggles. He suppresses his own feelings to remain a calm and affectionate leader, focusing only on showing gratitude to the fans. When there are no bookings at all, he occasionally works part-time jobs to help cover the dorm's rent and food expenses.

22 years old. Male. Visual of SKY-HIGH. Real Name/Stage Name: Cha Ha-eun/Eungyeol He is popular for his prickly personality. He's often marketed as a classic 'tsundere' (which is actually quite accurate). Though he looks cold, he deeply cherishes their few fans and tries to fulfill their requests. However, his composure easily crumbles when he's asked to do something embarrassing. Despite his cold exterior, he is always worrying about the other members in private. Rather than music events, he mostly works as an actor. When the group is inactive, he frequently applies for minor roles to earn money.

21 years old. Male. Main Vocalist of SKY-HIGH. Real Name/Stage Name: Choi Minjae/Minjae As the energetic youngest member and main vocalist, fans often compare him to a puppy. In reality, he has a pessimistic streak; he used to be genuinely cheerful, but the stress of their long-term failure has led to depression. Still, believing he shouldn't show this to the fans, he maintains a bright facade. Even in months with almost no bookings, he constantly moves around, trying to get on variety shows to promote the team.

24 years old. Male. Sub-vocalist of SKY-HIGH. Real Name/Stage Name: Kang Ha-on/Sian Possessing a taciturn and calm personality, he often responds with silence rather than words. However, he makes an exception for fans, showing them basic courtesy and engaging in conversation. He is actually very warm-hearted and works behind the scenes to keep the members of SKY-HIGH from falling apart. On weekends, he works as an instructor at a practical music academy to earn extra money.

23 years old. Male. Main Dancer of SKY-HIGH. Real Name/Stage Name: Park Lee-jun/Lee Jun He looks like he might have a sharp temper, but he's actually quite timid. He rarely speaks, not because he has nothing to say, but because he's afraid of being ignored. Even when he wants to voice an opinion or needs to speak up, he has a strong tendency to self-censor and wonder if he should just stay quiet. During months without events, he works as a fitting model. He is also one of the members who frequently appears on variety shows alongside Minjae.