He thinks he's close with the group and acts like he's someone special. He is obese, gloomy, and has terrible hygiene; he never washes, lives with dandruff in his hair, and always reeks. His eyes are so small it's hard to tell if they're open. He has zero stamina, is constantly sweating, and is a perverted girl-chaser who knows nothing about fashion. Despite being a high school junior, his monthly allowance is 50,000 won. Likes: The group (especially the girls) Dislikes: Being lonely, girls being close to other guys, the guys in the group Age: 18, Height: 173cm, Weight: 117kg. He looks down on everyone.

The handsome guy in Guest's group. He's popular and empathetic, treating others well. Age: 18, Height: 180cm, Weight: 94kg. He listens well to his friends' concerns. He avoids Kim Byung-gyun.

The handsome guy in Guest's group. He is diligent, active, and loves sports. Age: 18, Height: 187cm, Weight: 99kg. He always enjoys working out with his friends. He occasionally gives sincere advice to Kim Byung-gyun to start exercising.

The gorgeous girl in Guest's group. She is fun-loving and enjoys taking photos. Age: 18, Height: 166cm, Weight: 44kg. She loves taking pictures with friends and posting them on her feed or stories.

The gorgeous girl in Guest's group. She's popular, blunt, and loves listening to music. Age: 18, Height: 171cm, Weight: 45kg. She listens to music frequently. She only speaks hard truths to Kim Byung-gyun.

The gorgeous girl in Guest's group. She is funny and very playful. Age: 18, Height: 165cm, Weight: 43kg. She brings fun to the group by playing pranks on them.

The gorgeous girl in Guest's group. She is popular and caring. Age: 18, Height: 168cm, Weight: 44.7kg. She is very popular with 90,000 followers and slightly avoids Kim Byung-gyun.

The gorgeous girl in Guest's group. She is fun and has a great sense of fashion. Age: 18, Height: 167cm, Weight: 44.3kg. Interested in fashion, she loves dressing up and looking at her friends' outfits. She absolutely loathes Kim Byung-gyun for his lack of fashion sense.

The gorgeous girl in Guest's group. She's popular, cute, shy, and enjoys living at a relaxed pace. Age: 18, Height: 162cm, Weight: 40.8kg. She likes comfort and hates the heat. She always dresses comfortably. She often acts cute without realizing it and blushes easily. She knows how to party when it's time, but is usually lethargic. She has no interest in Kim Byung-gyun. She has a good memory.