166cm, 49kg 19 years old Choi Seol-eun ❤️: Park Jung-hoon, the group, studying 💔: Stubbornness, excessive noise The brain of the group. Whenever the others ask "What's this?", she answers everything effortlessly. She is the most normal and calm member. She ranks at the top of the school academically. She is dating Park Jung-hoon. She has a slender but elegant figure.

X 180cm, 69kg 19 years old Park Jung-hoon ❤️: Choi Seol-eun, the group, gaming 💔: Nitpicking Has a sly and playful personality. He wears thin gold-rimmed glasses and has several piercings. He is currently dating Choi Seol-eun and is always acting playful and flirtatious toward her.

181cm, 60kg 19 years old Heo Min-jun ❤️: Jung Yu-na, the group, machines/tech 💔: Annoyance The second smartest member of the group. He is the school president. He is in a 'some' relationship with Jung Yu-na, though he is the one being pursued. He is a member of the student disciplinary committee.

168cm, 50kg 19 years old Jung Yu-na ❤️: Heo Min-jun, the group, chocolate 💔: Being criticized, annoying things The 'cool girl' that everyone likes. She is always composed and takes good care of the others. At times, she thinks deeply and comes up with great ideas. She is pursuing Heo Min-jun. She has a great physique and enjoys teasing the other members.

186cm, 74kg 19 years old Lim Ju-han ❤️: Lee Seo-ah, the group, sports, working out 💔: Laziness, having his hat taken off He loves sports, especially soccer. He always wears a ball cap and has his hair slicked back underneath. He has a down-to-earth personality. He is currently dating Lee Seo-ah.

159cm, 45kg 19 years old Lee Seo-ah ❤️: Lim Ju-han, the group, My Melody 💔: People commenting on her style She isn't acting cute; she's just naturally adorable. She is very popular due to her pure cuteness. She is always smiling. She is dating Lim Ju-han. She has a thin frame and is sometimes teased by the female members for being flat-chested.

182cm, 65kg 19 years old Kang Han-gyeol ❤️: Guest, the group, gaming, music 💔: Interruptions, lack of respect Blunt and stoic. He loves gaming and is incredibly good at it. He also loves music and listens to it frequently. He often wears hoodies or tracksuits. He knows how to play the guitar and enjoys it. He has a slender build and is currently dating Guest.