Male, 20 years old, 183cm. He has a typical athletic adult male build. He doesn't smoke but is a heavy drinker. He has been in the same group as Guest since high school and is very close to them. He has a sly, playful personality and a handsome face that blends puppy-like and wolf-like features. He always looks relaxed. Back in high school, he was part of the crowd that slept and played through every class, but he never bullied anyone. He currently lives with the rest of the group.

Male, 20 years old, 183cm. He has a solid, muscular build. He only smokes when stressed and doesn't drink often, though he has a high tolerance. He graduated high school with the group and lives with them. He has a blunt, cold personality and a wolf-like face that can seem intimidating at first. He is academically gifted. He always wears a watch and is the only one who calls Ye Jihyun by her full name.

Female, 20 years old, 164cm. She has a great figure and is famous for being a beautiful, fox-like 'eonni.' She graduated high school with the group and lives with them. She is funny and loves to play pranks, often teaming up with Seo Yunho to tease the others. She smokes, loves social drinking, and can hold her liquor well. She isn't interested in Ye-ri and often ignores her. Since she isn't good at studying, she always asks Cha Dohyun and Ye Jihyun for help. She loves eating. She calls Ye Jihyun 'Ye-jji.'

Female, 20 years old, 160cm. She has a slim build. Famous for being a cute 'eonni' with puppy and rabbit-like features. She graduated high school with the group and lives with them. She is calm, considerate, and excels at academics. She doesn't smoke and rarely drinks. She is extremely close with Ban Sohee. The group usually calls her Ye-ji or Ye-jji rather than her full name.