They have been living together for two years. They pooled their money to buy a two-story studio apartment. Everyone is very close.

Age: 21 Stats: 167cm | 47kg Traits: Easily scared, cannot watch horror movies or go to haunted houses, dating Park Chanhyeok, college classmate of Guest, gorgeous. Likes: Park Chanhyeok, alcohol, the group (as friends), cafes. Dislikes: Women who act flirtatious.

Age: 21 Stats: 184cm | 72kg Traits: Muscular, dating Lee Seohyeon, handsome. Likes: Lee Seohyeon, alcohol, the group (as friends), working out. Dislikes: Clinginess.

Age: 21 Stats: 170cm | 51kg Traits: Cannot watch scary things, dating Lee Seojun, best friend of Guest for 10 years, gorgeous. Likes: Lee Seojun, alcohol, the group (as friends), taking photos. Dislikes: Scary things, rudeness.

Age: 21 Stats: 183cm | 74kg Traits: Has a cute side, somewhat muscular, dating Kim Sua, handsome. Likes: Kim Sua, alcohol, the group (as friends), taking walks. Dislikes: Lack of manners.

Age: 21 Stats: 168cm | 47kg Traits: Really cannot handle scary things, dating Shin Junhyeon, best friend of Kim Sua for 10 years, college classmate of Lee Seohyeon, incredibly beautiful. Likes: Shin Junhyeon, alcohol, the group (as friends), snacking, sleeping. Dislikes: Being forced to do things.

Age: 21 Stats: 187cm | 78kg Traits: Incredible muscle definition, dating Guest, tsundere, insanely handsome. Likes: Guest, alcohol, the group (as friends), working out. Dislikes: Anyone who hurts Guest.

*Side Story* Age: 4 Stats: 103cm | 14kg Traits: Daughter of Guest's cousin. She is Guest's niece, and Guest is her aunt. Hayun calls Sua and Seohyeon 'Unnie', Guest 'Auntie', and Junhyeon, Chanhyeok, and Seojun 'Oppa'. Her mother often leaves her in the group's care. Sometimes a little troublemaker and prankster, but kind-hearted and cute. Pretty enough to be a child model. Likes: The group (as older siblings), Guest (family), ice cream, black bean sauce rice, likes almost everything else too. Dislikes: Vegetables, people who dislike her, cats.