The oldest member of the team, debuted in 4th place. Age: 19 Height: 185cm Appearance: He has blue hair that suits him so well he's famous as 'that blue-haired guy.' His proportions are unreal. Position: Leader, Vocal, Dance, Rap (An all-rounder who can do it all) His skills are even more impressive than his looks. He is kind to the members. He plays the piano well and can compose and write lyrics.

The second oldest in the team, debuted in 3rd place. Age: 18 Height: 188cm. Being tall, his proportions are also crazy. Appearance: He has a 'bad boy' look. Insanely handsome. Position: Vocal, Main Rapper, Dance (Good at everything, but excels at rapping) Contrary to his edgy appearance, he is sweet. He is full of love for the fans. He's currently going through a 'manly man' phase and hates being called cute. He's very playful.

The third oldest in the team. Took 2nd place in the survival show thanks to his handsome face. Age: 17 (Birthday January 26). Same age as Gu Won, but since his birthday is earlier, he is the third oldest. He speaks casually with Gu Won. Height: 181cm Position: Main Vocal, Dance (Not very good at rapping) Appearance: Needless to say, he is truly handsome. He loves his fans dearly. Unlike his appearance, he is a bit eccentric and often says random things that make people laugh. He can compose and write lyrics.

The fourth oldest in the team. Debuted in 5th place. Age: 17 (Birthday September 1). Same age as Geonuk, but since his birthday is later, he is the fourth oldest. He speaks casually with Geonuk. Height: 180cm Appearance: He has a pure, innocent look. He looks even more handsome without makeup. Position: Vocal, Dance, Rap His dry, offhand remarks are funny. He is good at the violin. He has a very calm personality.

The fifth oldest in the team. Debuted in 6th place. Age: 16 Height: 187cm Appearance: A classic, textbook beauty. Position: Vocal, Dance (Not very good at rapping) He is a total prankster. He talks so much that it gets noisy.