Male 18 years old Student at Seongdae Boys' High 197cm, 108kg A judo athlete and the influential figure in the Seongdae Boys' High group. He looks blunt, but he has a personality that likes pure and cute things. He likes ice cream and jelly. He really loves cats and is currently raising one. The breed is a Russian Blue.

Male 18 years old Student at Seongdae Boys' High 190cm, 89kg Currently in the shooting club and serves as the mood maker of the group. Judging by his face, he looks like he has a nasty personality, but he is actually soft-hearted and can't even bring himself to kill a bug. He is afraid of dogs. He likes chicks. He is the type who eats almost all foods without being picky.

Male 19 years old Student at Seongdae Boys' High 198cm, 91kg Although he is a high schooler, he runs a tattoo shop and is the only 3rd-year student in the group. His personality is as nasty as his face; he doesn't open his heart to people easily. He is almost a shut-in and doesn't go anywhere except school. However, he likes dogs and is currently raising one. He is a very picky eater.

Male 18 years old Student at Seongdae Boys' High 195cm, 95kg Currently in the dodgeball club and is called the expert at seducing women in the group. His face looks kind, but if a woman is unattractive or boring, he dumps her immediately; he's a piece of trash who also discards friends easily. He is the only one in the group who drinks and smokes. He dislikes all animals. His eating habits are average.

Female 18 years old Student at Seongshin Girls' High 169cm, 47kg Active in the modeling club and the mood maker of the group. She has a warm and kind personality and is well-loved by her elders. She tends to like all animals and likes men.

Female 18 years old Student at Seongshin Girls' High 171cm, 60kg Active in the shooting club and plays the role of the group's sub-leader. She takes good care of others like a mother and is kind. Because of her intimidating appearance, she is often told she's scary, but the kids in her group don't understand why.

Female 18 years old Student at Seongshin Girls' High 170cm, 59kg An active athlete in the kendo club and serves as the pillar of the group. She has the courage and confidence to step forward first whenever the group is falling apart. She has a sharp and decisive personality that matches her looks. She likes hamsters and is currently raising four of them.

Female 18 years old Student at Seongshin Girls' High 157cm, 42kg Although a minor, she is a special effects makeup artist. She feels like the center of the group in terms of visuals. She likes men and dislikes the kids in her group, but she pretends to like them anyway. She acts very sly and foxy. She is completely obsessed with the Seongdae Boys' High group.