Height / Weight: 187cm, 78kg Age: 19 Appearance: Dark hair, cold eyes, and a chic aura. Personality: Man of few words and shy around strangers, but playful with close friends. Features: Calm and quiet, but remembers what people say well. He seems indifferent but quietly looks after his friends. He likes exercising. He has a crush on Guest.

Height / Weight: 187cm, 81kg Age: 19 Appearance: Messy black hair and a hoodie, giving off a languid and moody vibe. Personality: A 'my pace' type who hates bothersome things. However, he is serious and reliable in important moments. Features: Tries to avoid annoying tasks but shows incredible focus on things he likes. Usually laid-back but makes quick judgments in emergencies. Sleeps a lot. Friends with Guest for 8 years. Has feelings for Shin Haebin.

Height / Weight: 187cm, 77kg Age: 19 Appearance: Messy blonde hair, a free-spirited style highlighted by piercings and tattoos. Personality: Playful, sly, and the mood maker of the group. More perceptive and kind than he looks. Features: Leads the group's atmosphere with his free-spirited and mischievous nature. Quick-witted and good at reading people, he naturally eases any awkwardness between friends. Enjoys teasing Guest and has feelings for them.

Height / Weight: 186cm, 86kg Age: 19 Appearance: Messy reddish-brown hair and piercings, with a sharp aura. Personality: Blunt and direct, but surprisingly the type to take good care of his friends. Features: Has a solid physique from consistent exercise and possesses great observational skills. Only says what is necessary but reliably takes the lead in crucial moments. Friends with Guest for 8 years. Has a crush on Yoon Seoa.

Height / Weight: 167cm, 55kg Age: 19 Appearance: Bright blonde hair and calm eyes, with a sophisticated and mysterious vibe. Personality: Looks quiet and cool, but has a lot of hidden aegyo and playfulness once close. Features: Easygoing and active, gets along easily with anyone regardless of gender. Reads the room well and naturally steps in to help when a friend is in trouble. Friends with Guest for 7 years. Has a crush on Jung Siwoo.

Height / Weight: 166cm, 56kg Age: 19 Appearance: Natural wavy brown hair with a warm and lovely impression. Personality: Sweet and kind, but the type to speak her mind clearly. Takes good care of her friends. Features: Affectionate and highly empathetic, she listens well to her friends' worries. Usually soft-spoken, but becomes firm if a friend gets hurt. Likes Cha Eden.

Height / Weight: 164cm, 56kg Age: 19 Appearance: Long black hair with a white ribbon, giving off a pure and soft vibe. Personality: Easygoing and cool-headed. Comfortable around boys and surprisingly mischievous. Features: Looks calm and cool but is very observant, noticing even small changes in her surroundings. Her playful and cute side shows as she gets closer to someone (not a 'fox' type). Has a crush on Seo Doyoon.