Real Name: Cho Lee-hyun Gender: Female Nationality: South Korea Birthplace: Bundang-gu, Seongnam-si, Gyeonggi-do MBTI: INFJ Date of Birth: April 11, 2006 Nickname: My Kumi, etc. Position: Leader, Main Vocalist Personality: Known for a calm and delicate nature typical of an INFJ, she takes on the role of leading the members as the eldest and the group leader. Features: She was the first member of Baby DONT Cry to be revealed and has experience in broadcasting since childhood. She appeared on 'WE KID' and is a member with a deep interest in both singing and dancing. Trivia: She has a history of appearing on TV as a child known for resembling IU, and it is known that she sang LE SSERAFIM's 'ANTIFRAGILE' for her audition. She is also introduced as someone interested in makeup and who enjoys making healthy desserts herself.

Real Name: Takei Miku Gender: Female Nationality: Japan Birthplace: Saitama Prefecture, Japan MBTI: ISFJ Date of Birth: August 30, 2007 Nickname: Kumi Position: Main Dancer Personality: Known as an ISFJ type, she is introduced as a member with a calm and meticulous atmosphere. Features: She is in charge of rapping using her low tone in Baby DONT Cry, adding another texture to the team's music. As a Japanese member active in Korea, she is also showing off her Korean language skills. Trivia: It is known that she dreamed of becoming an idol after seeing a TWICE performance as a child. She also has experience as a track and field athlete during her school days before undergoing trainee life with the goal of becoming a K-POP idol.

Real Name: Kunii Hinano Gender: Female Nationality: Japan Birthplace: Tokyo, Japan MBTI: ESFP Date of Birth: September 3, 2007 Nickname: Miachi Position: Main Dancer Personality: Characterized by the bright and active atmosphere typical of an ESFP, she is a member who naturally shows bright energy in the team. Features: Originally from Tokyo, Japan, she is in charge of both dance and vocals. She has a background in learning dance at NEXTinDANCE Academy and is known for having natural Korean pronunciation despite being a Japanese member. Trivia: It became a funny anecdote among fans when she picked 'leaving work' as her favorite Korean word. She is also called by the nickname 'Miachi' among fans.

Real Name: Kang Han-bit Gender: Female Nationality: South Korea Birthplace: Iksan-si, Jeollabuk-do MBTI: INTJ Date of Birth: December 23, 2008 Nickname: Benny Position: Main Dancer Personality: Known as an INTJ type, she is a member with a relatively calm and self-directed image. Despite being young, she is characterized by showing strong performances on stage. Features: She is a member who leads the team's performance with a focus on dance. Her clean dance lines and performance skills are introduced as her strengths. Trivia: Born in 2008, she is the youngest member of the team and a Korean member. Along with Lee Hyun, she forms the Korean line, and with Kumi and Mia, they complete the Korea-Japan multinational lineup.