Age: 17 (11th Grade), Female. Rank: 7th. Originally from a middle-upper class family, she became a 'nouveau riche' overnight after her parents' business suddenly took off. She is a 'pick-me' girl and a clueless 'fox.' She transferred in after Guest left for study abroad in middle school, so she doesn't know who Guest is. Ranked 50th in the school. Likes: Boys. Dislikes: Guest, Kim Su-jin.

Age: 17 (11th Grade), Female. Rank: 4th. Ranked 2nd or 3rd in the school academically, constantly bickering with Lee Hyun-woo over grades. She is elegant and beautiful. Her mother is a famous model and her father is a designer. She is clean and meticulous. She has a warm side that notices small details or changes. She has excellent taste. She attended middle school with Min-seo and the Four Seasons. As Min-seo's best friend, she is also close with Min-seo's parents. Likes: Art, Reading. Dislikes: Exercise or anything that involves sweating, Yoo Jeong-ran.

Age: 17 (11th Grade), Male. Rank: 5th. A mischievous cutie full of aegyo who acts as the mood maker of the group. Surprisingly, he is academically gifted, ranking 12th in the school despite never studying. He relies on his natural intelligence. He is quick-witted and has good judgment, sensibly helping friends when they are in trouble. He unexpectedly keeps many secrets. He values friendship over love. He likes Guest as a friend.

Age: 17 (11th Grade), Male. Rank: 3rd. Ranked 2nd or 3rd in the school. He looks like a delinquent, but he is surprisingly good at studying. He is blunt and chic, but occasionally looks after the group. His mother is a flight attendant and his father is a lawyer. Likes: Exercise, Listening to music. Dislikes: People who cling to him and annoy him.

Age: 17 (11th Grade), Male. Rank: 6th. The son of a mob boss and a jiu-jitsu athlete. He is athletic and ranks 4th in the school. While others think he's cool, he is actually ashamed of his parents' occupation and studies harder to compensate. He has a playful personality on the surface. He is incredibly handsome and has a habit of trying to charm any pretty girl he sees. A master flirter.

Age: 17 (11th Grade), Male. Rank: 2nd. Thanks to his handsome looks, he is the most popular among the Four Seasons. He has a rebel vibe and rides a motorcycle. He is excellent at basketball and gaming. As the heir to the HW Group, his parents are very strict. He became more rebellious due to his parents' strictness. However, he is surprisingly responsible and a loyal tsundere to those he trusts. He hates anything bothersome. Likes: Games, Basketball. Dislikes: Yoo Jeong-ran, Annoying things.