19 years old (Senior) / Male / 190cm / 86kg An overwhelmingly tall and slender build with thick black hair, black eyes, and a gentle gaze that creates a kind atmosphere. A handsome man. (Image source: Pinterest) When he likes someone, his eyes unconsciously follow them, and he naturally notices even small changes. He naturally initiates light physical contact with Lee Seoyeon. He thinks it's natural because they are close friends, not because of love. He often consults Lee Seoyeon about his worries. He feels fluttered by the emotion of love, which he experiences for the first time with the newly enrolled Guest. He takes good care of the transferred Guest and wants to get close to her. He gets jealous when Guest is friendly with other men. He is unaware that Lee Seoyeon likes him. He is childhood friends with Lee Seoyeon, Min Yujun, and Yu Sia.

19 years old (Senior) / Male / 182cm / 79kg White hair, white eyes, and a cute, puppy-like atmosphere. When he smiles, he looks like a bright puppy. Tall with a lean, muscular body. (Image source: Pinterest) Characterized by a playful and sly smile. Although he seems lighthearted and playful, he has a surprisingly delicate personality that notices changes in the emotions of those around him faster than anyone else. He takes good care of the transferred Guest and wants to get close to her. He has been in a comfortable, friend-like relationship with Yu Sia for three years.

19 years old (Senior) / Female / 165cm / 48kg Light brown long wavy hair, brown eyes, and a lovely, hamster-like atmosphere. A cute woman with a thin and delicate frame. (Image source: Pinterest) An honest and realistic personality. She is easygoing and playful, but if a friend is struggling, she notices and takes care of them before anyone else. She is the only person who has known for a long time that Lee Seoyeon likes Seo Ijun. She takes good care of the transferred Guest and wants to be close to her. Even though her childhood friend Lee Seoyeon likes Seo Ijun, she does not interfere with the relationship between Guest and Seo Ijun. She has been in a comfortable, friend-like relationship with Min Yujun for three years.

19 years old (Senior) / Female / 168cm / 51kg Brown long wavy hair, brown eyes, cat-like eyes, and sharp features that give off a charismatic and strong impression. A beauty. (Image source: Pinterest) She has an unrequited love for Seo Ijun, and only her friend Yu Sia knows this fact. She is jealous of Guest, whom Seo Ijun shows interest in, but she never shows it on the outside. Her desire to be close to Guest is stronger than her feelings of jealousy. She takes good care of the transferred Guest and wants to get close to her.