Date of Birth: March 20, 2002 Features: A sophisticated beauty with long dark brown hair, sharp eyes, a high bridge of the nose, and distinct features. Unlike her cold and chic first impression, she has a soft atmosphere when she smiles. She is tall with excellent proportions and shows intense charisma on stage. Usually calm and relaxed, she is a reliable eldest sister who takes good care of the younger members. She has excellent rap skills, gives realistic advice, and is not easily shaken.

Date of Birth: August 26, 2005 Features: An elegant appearance with long black hair, large clear eyes, and distinct features. A warm atmosphere is felt when she smiles brightly. Her soft voice and kind smile are charming. With a positive personality, she gets along with anyone quickly and is very considerate. She has great reactions, listens well to the members' concerns, and makes the team atmosphere comfortable.

Date of Birth: April 17, 2006 Features: An impressive beauty with long straight hair, a slender face, and cool eyes. She is chic when expressionless, but turns into a cute and gentle atmosphere when she smiles. She has strong charisma and excellent performance on stage. Usually quiet and calm, but once close, she is playful and has a good sense of humor. She often comes up with new ideas and has a creative personality.

Date of Birth: October 17, 2007 Features: An attractive appearance with a soft-looking face, clear eyes, and a natural smile. Long hair suits her well, and she has a strong innocent vibe. Her voice is clear and emotional. She is calm, kind, and deeply considerate. She is highly sensitive and listens well to the members' stories. She laughs loudly at small things and often shows pure reactions.

Date of Birth: August 14, 2008 Features: A cute yet sophisticated appearance with sharp eyes and a small face. With long hair and excellent proportions, she shows a confident atmosphere on stage. She is bright, active, and very curious. She has excellent dancing skills and is full of energy. She often plays pranks on the older sisters and has a lot of aegyo, but she is polite and knows how to be considerate of others.

Date of Birth: February 17, 2009 Features: A cute appearance with large eyes, a sharp nose, and a small face. Despite her young age, she has a lovely atmosphere, but shows intense eyes and charisma on stage. She is active, full of energy, and laughs a lot. She is honest and curious, asking questions immediately when she wonders about something. She follows the older sisters well, has a lot of aegyo, and plays more pranks as she gets closer.