Gender: Male Age: 17 Height: 178cm Club: Soccer Club Grade/Class: 1st Year, Class A Traits: Possesses extraordinary determination and drive, often taking on leadership roles. However, his lack of fear and pure curiosity sometimes lead to eccentric accidents. He is frequently shipped with Lee Yuri.

Gender: Female Age: 17 Height: 167cm Club: Literature Club Grade/Class: 1st Year, Class A Traits: A model student recognized by everyone for her constant composure and consideration. Thanks to her vast reading habits across all genres, she is knowledgeable even in unconventional areas. She is frequently shipped with Nam Dongjin.

Gender: Male Age: 17 Height: 184cm Club: None Grade/Class: 1st Year, Class A Traits: Once his pride is ignited, he sees things through to the end, but he finds most things bothersome. He adapts easily because he thinks regretting or agonizing over mistakes is a waste of energy. His eyes change when talking about bikes. He is often shipped with Jeong Yeseul. He once got hit by Yeseul's soccer kick and fainted. He once told her, "Your whole body is a weapon," though that wasn't why he got kicked.

Gender: Female Age: 17 Height: 176cm Club: None Grade/Class: 1st Year, Class A Traits: The athletic department had their eyes on her due to her exceptional reflexes, but they all gave up because of her uncontrollable personality. She persuades others through self-conviction rather than logic. She is often shipped with Kim Junho.

Gender: Male Age: 17 Height: 175cm Club: None Grade/Class: 1st Year, Class A Traits: As a transfer student who arrived mid-semester, he received a lot of attention, but he responded with cold indifference, creating an unapproachable atmosphere. There are sightings of him wandering around various parts of the school alone. He is frequently shipped with Go Narae.

Gender: Female Age: 17 Height: 164cm Club: Art Club Grade/Class: 1st Year, Class B Traits: She is clumsy at approaching others or receiving kindness. She hates being looked down upon, so she is often seen fighting or getting angry. She believes she likes being alone. She frequently clashes with the siblings Cho Yeji and Cho Yeonbin due to past events. She is frequently shipped with Jeong Dongseok. Once, she ran into Dongseok at night, and the PE teacher, Jang Daehan, saw them and mistakenly asked if they were on a date.

Gender: Male Age: 17 Height: 171cm Club: Board Club Grade/Class: 1st Year, Class B Traits: He listens very well to his brother, Kwak Jaehyeong, who is three years older. Only Jaehyeong can suppress Junhyeong when he's in his chaotic "elementary kid" mode. Due to his uncontrollable playfulness, he had a chase with security guards on his first day of orientation. As a result, he has become an expert at running away.

Gender: Female Age: 17 Height: 155cm Club: Cheerleading Club Grade/Class: 1st Year, Class D Traits: She is the type to gain energy by seeing others energized by her cheering. She loves that virtuous cycle of encouragement. Every morning, she wakes up by playing a random cheering song and dancing to the choreography. Her recent goal is to improve her physical stamina.

Gender: Female Age: 18 Height: 165cm Club: Archery Club Grade/Class: 2nd Year, Class D Traits: She starts her day with meditation. Having possessed extraordinary focus and intuition since childhood, she pursued archery at the recommendation of those around her. However, because her attention is mostly directed inward, she can be insensitive in relationships with others. She becomes very faithful when she feels a sense of duty. The thing she feels closest to is a turtle she raised as a child. She received a trophy at a school archery competition, but she once used it to try and crack walnuts.

Gender: Male Age: 18 Height: 194cm Club: Baseball Club Grade/Class: 2nd Year, Class B Traits: Having never experienced failure, he is confident in everything he does. Many students joined the baseball club after seeing his play. He is naturally gifted at encouraging teammates and lifting the mood. Because of this personality, he has a large fan base, but he has never served as captain.