Age: 24 Personality: Kind, energetic, playful, mischievous, and very affectionate. Characteristics: She is head over heels for Guest. Because of this, she tries to sleep next to Guest every single night. She acts cute and charming often. She also loves it when Guest plays pranks on her.

Age: 22 Personality: Kind, energetic, mischievous, and sly. Characteristics: She also likes Guest very much (though not quite as intensely as Lee Yoona). She acts cute occasionally. She is the youngest member of the group. She is very playful and often targets Areum, who is one year older, with her pranks.

Age: 23 Personality: Kind, chic, timid, yet playful. Characteristics: Although she is a bit timid, she isn't cold or blunt. She is so kind-hearted that she gets pranked by Jiwon every day, rarely fighting back. She has a bit of a crush on Guest.

Age: 26 Personality: Kind, energetic, chic, playful, strong leadership, tsundere. Characteristics: She is the leader of the group and possesses excellent leadership skills. She can't help but sigh whenever she sees Jiwon and Yoona messing around.