Female. Club: None. Age: 17. Birthday: July 7. Height: 176cm. Hobby: Checking her perfect beauty in the mirror. Dream: To live doing everything she wants. Special Note: She has exceptional athletic nerves, so many sports clubs had their eyes on her, but they all gave up because of her unmanageable personality. She has strong instinctive intuition and tends to persuade others with self-conviction rather than logic. She has a crush on Junho. She is very close with Im Hyeonji. She usually hangs out with Junho, Dongjin, and Yuri. She calls Im Hyeonji "President Im." Quote: "I'm exceptionally pretty today!"

Male. Club: Soccer Club. Age: 17. Birthday: August 17. Height: 178cm. Favorite Food: Pork cutlet (with hash rice sauce). Disliked Food: Things that are alive and moving. Special Note: He often takes on a leadership role due to his exceptional decisiveness and drive. However, his fearless and naive curiosity sometimes leads to eccentric accidents. He is not good at hiding his emotions, so they show plainly on his face. He has a crush on Lee Yuri. He tries to get along well with everyone. He usually hangs out with Yuri, Junho, and Yeseul. Quote: "I love school!"

Female. Club: Literature Club. Age: 17. Birthday: May 8. Height: 167cm. Hobby: Reading books (regardless of genre). Superpower she wants: Dongjin's sociability, Yeseul's athleticism, Junho's competitiveness, and... Special Note: A model student recognized by everyone for being calm and considerate. Due to her massive reading volume across all genres, she is knowledgeable in non-everyday fields. She is kind and full of consideration. She likes Nam Dongjin. She hangs out with Dongjin, Yeseul, and Junho. She has a lot of medical knowledge. Quote: "Wounds must be disinfected cleanly."

Male. Club: None. Age: 17. Birthday: July 13. Height: 184cm. Likes: Fast things. Dislikes: Rats. Special Note: Once his pride is ignited, he sees things through to the end, but usually, he finds everything bothersome. Even if he makes a mistake or a problem occurs, he considers regretting and suffering to be a nuisance and adapts easily. He bickers a lot with Jeong Yeseul. Usually, he gets hit after nitpicking everything she says (...), but they work well together in important situations. He seems to have saved Jeong Yeseul as "Poop Idiot" in his contacts. He has a crush on Jeong Yeseul. He plays a lot of games. He hangs out with Yeseul, Dongjin, and Yuri. Quote: "I want to go home."

Male. Club: None. Age: 17. Birthday: June 14. Height: 175cm. Sleep time: 2 hours (extremely wary of nightmares). Breakfast: Essential nutrient capsules he developed himself (one a day, tastes like boiled newspaper). Special Note: He transferred in the middle of the semester and receives a lot of attention, but he always responds with cold indifference, creating an unapproachable atmosphere. He is often spotted wandering around various parts of the school alone. He is a tsundere. He likes Go Narae, but it's not obvious at all. He possesses a Stand called First Blood, but he rarely uses it.

Female. Club: Art Club (President). Age: 17. Birthday: March 11. Height: 164cm. Rabbit: !!mV!m!!m!!!m Special Note: She is clumsy at approaching others and at facing kindness directed toward her. She extremely dislikes being looked down upon, so she is often seen fighting or getting angry. She believes she likes being alone. She is in conflict with the siblings Jo Yeji and Jo Yeonbin due to past events. She likes Jeong Dongseok. Quote: "Don't bother me!"

Female. Club: None. Age: 17. Birthday: November 30. Height: 155cm. Likes: Hugging tightly, being hugged tightly. Dream: To open a candy shop with her roommate Jeong Yeseul. Special Note: A bright and energetic personality who eats well and runs around well. she is obsessed with delicious things, cute things, and delicious-cute things. She was a prospect for the track team at the beginning of the semester, but has now quit. However, she is still on good terms with her track team friends. When she watches a sad movie, she hugs the person next to her and cries her eyes out. She calls Jeong Yeseul "Madam Jeong." She has a crush on Junhyeong. Quote: "This is so delicious!"

Male. Club: Board Club. Age: 17. Birthday: December 27. Height: 171cm. Nickname: Kwak Elementary. Special Note: He follows his brother Kwak Jaehyeong, who is three years older, very well. Kwak Jaehyeong is the only one who can suppress Kwak Junhyeong when he's in his chaotic elementary kid mode. Thanks to the chases with security guards that started on orientation day due to his uncontrollable playfulness, he has become a master of running away. He has a crush on Hyeonji. He always rides his board around. His nickname is Kwak Elementary. Quote: "Hehe, run away!"