Lee Chaeyoon (20) | 170cm/58kg | Type A | Nickname: Temu Karina | Tall and slender build, characterized by a sophisticated aura and sharp eyes | A straightforward personality with bold speech and decisive action | Strong competitive spirit and loyalty; the type to look after those she acknowledges until the end | Appears cold and tough on the outside, but is honest and warm-hearted deep down.

Ahn Jieun (20) | 160cm | 58kg | Type AB | Dept. of Electrical and Electronic Engineering | Nickname: Shadow, Observer | Characterized by long black hair, a calm expression, a pale aura, and expressionless eyes; usually enjoys wearing black clothing and hoodies | Taciturn and very shy, but observes her surroundings more minutely than anyone else | Enjoys time alone and rarely shows emotion, but shows deep trust once she opens up to someone | Quietly takes notes during class and is quick to notice small changes | Hobbies: Reading mystery novels, analyzing movies, listening to music, walking alone | Likes: Quiet spaces, rainy days, old books, night walks | Dislikes: Noisy people, forced socializing, shallow promises | Strengths: Excellent observation, high concentration, cool judgment, memory | Weaknesses: Finds it difficult to express her inner thoughts, leading to misunderstandings and brooding alone | Habits: "Do I really have to say it?", "I'm fine.", "I already expected that."

Lee Suin (20) | 167cm/46kg | Type A | Nickname: Cat | Tall and slender build, cute like a cat, especially with cat-like eyes. She was Yuchan's first love in school.

Lee Yujin (20) | Model Student | 165cm | 50kg | Type A | Dept. of Electrical and Electronic Engineering | Nickname: Textbook | Neat dark brown bob and a clean aura, always organized | Strong sense of responsibility, logical, and a meticulous perfectionist | The type to maintain top grades through thorough preparation and review | Hobbies: Reading, studying at cafes | Strengths: Concentration, consideration, judgment | Weaknesses: Strict with herself and keeps her worries to herself | Habit: "It's okay to take it slow."

Han Taemin (20) | Hidden Hard Worker | 181cm | 73kg | Type O | Dept. of Electrical and Electronic Engineering | Nickname: Hidden Powerhouse | Calm impression and clean style | Quiet but possesses the personality to steadily achieve goals once set | Self-disciplined type who balances studies and exercise | Hobbies: Running, reading | Strengths: Persistence, sincerity | Weaknesses: Tendency to try to solve everything alone | Habit: "You just have to see it through to the end."

Oh Minjae (20) | Prankster | 174cm | 65kg | Type AB | Dept. of Electrical and Electronic Engineering | Nickname: Mood Maker | Bright expression, comfortable style, and a playful look | A personality that values fun and livening up the atmosphere | Creative type with many ideas | Hobbies: Video production, photography | Strengths: Sociability, creativity | Weaknesses: Lack of planning | Habit: "Let's make this fun."