Age: 19 (Senior in High School) Height: 168cm Personality: She exudes a chic and cold aura on stage, but in reality, she's the softest member of the team who bursts into laughter at the slightest thing and is full of reactions. Range & Style: A main vocal whose primary weapons are explosive volume that pierces the mic, a soulful low register, and solid chest-voice high notes. She radiates heavy, powerful energy during performances. Features: Formerly studied abroad in Indonesia; a frequent target for the other members to tease affectionately.

Age: 19 (Senior in High School) Height: 169cm Personality: Contrary to her sophisticated cat-like visuals, she is the gentle and warm spiritual pillar of the team. She's a laid-back leader who just smiles and accepts whatever pranks the younger members pull. Range & Style: A trendy, textbook SM-style voice that transitions smoothly from mid-low to mid-high ranges. Her dance lines are very clean and standard, perfectly anchoring the center of the stage. Features: Has a surprising side where her eyes sparkle like a student council president only when deciding on something fun.

Age: 18 (Junior in High School) Height: 164cm Personality: Usually a calm and rational 'mother' type, but she's a hidden ace with terrifying competitiveness once a bet or game begins. Range & Style: A main vocal who perfectly executes clear, piercing ultra-high notes live. She is incredibly sharp with choreography details and responsible for aligning the team's dance angles. Features: A relentless hard worker who stays behind to practice alone until the practice room mirrors fog up.

Age: 18 (Junior in High School) Height: 167cm Personality: Possesses a free spirit from her time studying in Canada and a steel mentality that remains unshaken in any situation. A cool-headed 'cat' who walks her own path even during tense confrontations. Range & Style: A refreshing pop vocal style with wide-open high-register vocalization. Characterized by hip dance lines with a rhythmic and sophisticated groove. Features: A multi-talented 'cheat character' who was a former school band leader and can play bass, guitar, and drums.

Age: 17 (Sophomore in High School) Height: 166cm Personality: A deep introvert who is usually quiet, shy, and likes staying in corners, but she's a strategist who quietly clinches victory in chases or brain games. Range & Style: A charming vocalist and rapper with the most unique husky low tone in the team. Her dance style is based on heavy, hip street dance. Features: Owner of a heavy, unexpected voice that contrasts with her cute freshman looks.

Age: 17 (Sophomore in High School) Height: 171cm Personality: Gives off a cold elite vibe with her mysterious and exotic visuals, but once she speaks, she's not exactly soft-spoken to the older members—she's hilarious. Along with Ian, she's a comedy character and the actual top-tier member of the youngest line who hits the nail on the head. Range & Style: A 'concept master' with the best vocal balance who can perfectly pull off songs of any concept. A solid all-rounder with no holes in either vocals or dance. Features: Her quiet observations of the older members followed by a sharp comedic remark are the highlights of their self-produced content.

Age: 17 (Sophomore in High School) Height: 164cm Personality: The official human vitamin who makes you feel good just by looking at her. With near-zero shyness, she has super-powered social skills to become best friends with strangers or seniors in five minutes. She's funny and a comedy duo with Yuna. Range & Style: A bouncy, refreshing tone that clears the ears. A performer with outstanding facial expressions and stage manners who is best at capturing the audience's attention. Features: A hidden contributor who takes care of the older members' mental state with her unique beagle-like energy whenever the team atmosphere is down.

Age: 17 (Sophomore in High School) Height: 167cm Personality: The youngest and an unexpected variety show 'cheat key'. She's well-versed in all sorts of internet memes and carries the screen time in the interview room along with Ian and Yuna. Despite that, she is soft-spoken, uses polite speech, and is the most mature. Range & Style: Unlike her variety persona, she is an emotional vocalist with a soft medium tone that comfortably wraps around the ears when singing. She tends to execute choreography flexibly and smoothly. Features: A natural-born celebrity who generates memes with quirky expressions even in tense situations like ranking announcements.