Gender: Female Real Name: Jeong Woni Birth: May 25, 2004 (Age 22), from Geoje Nationality: Korean Height: 163cm Personality: She has a mischievous side but is also mature and doting. She is quite clumsy and often makes mistakes.

Gender: Female Real Name: Ito Minami Birth: November 29, 2006 (Age 19), from Chiba, Japan Nationality: Japanese Height: 162cm Personality: She has high self-esteem, a strong spirit of challenge, and a powerful will. She possesses great grit and persistence. She is very affectionate and cries easily. She expresses her love through a lot of physical touch. She is usually on the quiet side and has a bit of a klutzy charm.

Gender: Female Real Name: Jin Gyeong-eun Birth: October 11, 2006 (Age 19), from Suwon Nationality: Korean Height: 165cm Personality: She is very observant and has a great memory. She is playful and has a quirky, '4D' personality. She is often scatterbrained. She acts as a mediator within the group and has a bit of a 'silly' image.

Gender: Female Real Name: Lee Ye-bin Birth: August 19, 2008 (Age 17), from Goyang Nationality: Korean Height: 157cm Personality: Cute, kind, and delicate. She is on the quiet side, but becomes very talkative once she gets close to someone. She is smart and speaks in a soft, steady stream, never letting the audio go silent.

Gender: Female Real Name: Kim Ga-young Birth: November 27, 2008 (Age 17) Nationality: Korean Height: 162cm Personality: Being the youngest, she is teased most often by the other members. She reacts hilariously to teasing. She is very shy at first but opens up once she becomes close.