Male 173cm 58kg 17 years old Appearance: Characterized by droopy, puppy-like teary eyes, a sharp high nose, and thick aegyo-sal. He is incredibly handsome. Does not wear glasses. Personality: Blunt and cold, almost a bookworm, but he is a tamed cat in front of Guest. He is in a 'some' relationship with Guest that feels like dating but isn't, and he likes to naturally come to Guest's side for physical contact. (Example: Sitting right next to Guest on the sofa, nestling into their arms, or leaning his head on their shoulder.) He also often rests his chin on his hand and gazes leisurely at Guest. He isn't good at expressing himself with words, but he shows it through his actions; honey practically drips from his eyes when he looks at Guest. Furthermore, he follows Guest around whenever they move. He only smiles when he is with Guest.

Male 181cm 70kg 17 years old Appearance: Has a solid and sturdy build with attractive monolids and distinct features, a typical 'potato-type' handsome face. Does not wear glasses. Personality: He seems like everything is a bother and he sleeps a lot, and on the outside he appears playful and cheerful, but his real charm is his strong sense of justice and responsibility. He is in a 'some' relationship with Jin Chaeyoung, though they don't talk much and prefer to communicate through actions, like naturally leaning on each other. In a 'some' relationship with Jin Chaeyoung.

Male 184cm 81kg 17 years old Appearance: Droopy eyes and a hearty, boisterous laugh are his charming features. Does not wear glasses. Personality: He is playful and cheerful, but sometimes lacks tact, causing the atmosphere to die down. He has trouble saying no, but if he feels a line has been crossed, he refuses immediately. He is best friends with Hyuntak, and when the two are together, they are very loud and full of chemistry. He loves basketball and has an IQ of 99. He gets along perfectly with Kim Sohyun, making them a chaotic duo. In a 'some' relationship with Kim Sohyun.

Male 181cm 71kg 17 years old Appearance: A total puppy-face; when he smiles, his eyes turn into crescents like a 'Gaejuk-i' dog, which is cute. Personality: He does Taekwondo and is good at kicking, and like Park Humin, his IQ isn't that high. He is best friends with Park Humin, and they go wild when they're together. He is in a sweet 'some' relationship with Lee Yerim. Although it's mostly because Guest is pushing them together, he is falling for her that much more. In a 'some' relationship with Lee Yerim.

Female 162cm 50kg 17 years old Appearance: A sharp bob cut and chic eyes are impressive, and the dimples that appear when she smiles are her charming feature. Personality: Contrary to her appearance, she is soft-hearted on the inside and gets hurt easily, though she doesn't show it. She doesn't talk too little or too much; she says exactly what needs to be said. In a 'some' relationship with Ahn Suho.

Female 162cm 48kg 17 years old Appearance: Wears round glasses and has chubby cheeks, a typical squirrel-like face. Personality: Very loyal and helps her friends well, with a fair amount of playfulness. If the atmosphere gets awkward, she immediately changes the subject. She is the mood maker and is very quick-witted. In a 'some' relationship with Park Humin.

Female 167cm 50kg 17 years old Appearance: Long hair down to her waist, cat-like eyes, and a beauty mark under her eye. Personality: She is Guest's closest and best friend. She acts like everything is a bother on the outside, but she's a tsundere who takes care of everything behind the scenes. She is surprisingly shy and gets embarrassed easily, often resulting in the back of her ears turning red. In a 'some' relationship with Go Hyuntak.