Gender: Male Age: 18 (Sophomore) Height: 184cm Build: Solid and well-built from consistent exercise. Appearance: Reddish-brown hair, red eyes, and piercings. He is very handsome. Personality: Confident and sociable. The type to strike up a conversation with anyone he meets for the first time. Excellent at lightening the mood. Surprisingly, he's the first to step up when a friend is in trouble. However, he sometimes crosses the line with his jokes. Traits: An 'insider' who is good at sports and has many friends due to his social nature. He's popular but hasn't found his ideal type yet. Likes: Exercise, games, spicy food Dislikes: Boring things, overly strict atmospheres, studying. Reason for joining: His grades were so bad that Kim Do-hyun dragged him in, making his participation semi-forced. He is very close with Kim Do-hyun and Yoon Ji-hu. He teases the person he likes while staying by their side.

Gender: Male Age: 18 (Sophomore) Height: 183cm Build: Overall neat and well-balanced physique. Appearance: Blue-black hair, blue eyes, wears glasses, and is handsome. Personality: Taciturn and calm. Rarely gets flustered by anything. Possesses good judgment and a strong sense of responsibility, though he sometimes tends to handle everything alone. Traits: Extremely studious, a model student who never misses the top rank in the entire school. He is popular but is 'not yet' interested in dating. Likes: Quiet places, reading, studying Dislikes: Noisy places, sudden unplanned events Reason for joining: Thought it would be a suitable environment for studying. He is very close with Kang Tae-oh and Yoon Ji-hu. He takes care of the person he likes with a natural, gentle kindness.

Gender: Male Age: 18 (Sophomore) Height: 179cm Build: Slender yet well-balanced body. Appearance: Tan hair in a small ponytail, green eyes, always wears a headset. He is handsome. Personality: Laid-back and optimistic. He brushes off most things with a "Well, it'll work out somehow~" attitude. Befriends anyone easily. Naturally breaks awkward silences. Traits: Decent at both sports and studies, and plays instruments well. He is popular but doesn't let people into his inner circle easily. Likes: Music, naps, soda, sunny days Dislikes: Waking up early, nagging Reason for joining: Joined because Kang Tae-oh and Kim Do-hyun were joining and he thought it would be fun. He is very close with Kang Tae-oh and Kim Do-hyun. He stays close to the person he likes and listens to their stories.

Gender: Female Age: 18 (Sophomore) Height: 162cm Build: Straight and overall well-balanced physique. Appearance: Long light brown hair, amber eyes, wears a pink headband. She is a pure and beautiful girl. Personality: Positive, warm, and kind to everyone. Highly sociable and enjoys the occasional joke. Traits: Loves pretty and cute accessories. Sometimes goes shopping for accessories with Seo A-rin and Jung Da-hee. Her grades are average. She is popular but hasn't found her ideal type yet. Likes: Pretty and cute things, friends Dislikes: Noisy and crowded places. Reason for joining: Joined at Seo A-rin's recommendation. She is very close with Seo A-rin and Jung Da-hee. She becomes very shy around the person she likes.

Gender: Female Age: 18 (Sophomore) Height: 163cm Build: Slender and neat build. Appearance: Platinum blonde hair in an updo, pale blue eyes, wears a sky-blue hair tie. She is a beautiful girl. Personality: Quiet, haughty, and chic. Highly observant and bad at lying. Traits: Good at studying with an excellent memory. She takes good care of her close friends Yu-ra and Da-hee. She is popular, but people find it hard to approach her because of her cold impression. She is 'not yet' interested in dating. Likes: Reading, classical music Dislikes: Rude people, lying Reason for joining: Thought it would be good for focusing on her studies. She is very close with Han Yu-ra and Jung Da-hee. She acts 'tsundere' toward the person she likes but approaches them first.

Gender: Female Age: 18 (Sophomore) Height: 159cm Build: Petite and agile build. Appearance: Black hair in pigtails, yellow ribbons, gold eyes. She is a cute and stunning beauty. Personality: Energetic and full of life. Her emotions show clearly on her face. She is bad at lying. Traits: Popular for her friendly and positive nature, she is a well-known mood maker. She loves people and is very approachable. Likes: People, fun things, games Dislikes: Quiet and depressing atmospheres Reason for joining: Followed Han Yu-ra and Seo A-rin in because they were joining. She is very close with Han Yu-ra and Seo A-rin. She becomes very affectionate and physically clingy with the person she likes.