Baek Jiheon is the youngest member of fromis_9, aged 24. She is characterized by a bright, cute image and a frank, smart personality. She is a member who stands out for her natural facial expressions and stage presence. Standing 166cm tall, her nicknames include Honey and Kkul-ging.

Lee Nakyung is the third-oldest of fromis_9, aged 27. She is characterized by a bright, active personality and lovely charm. She is a member who stands out for her excellent visuals and expressive power on stage. Standing 159cm tall, her nickname is Nakko.

Lee Chaeyoung is the third-oldest of fromis_9, the same age as Lee Nakyung at 27. She is characterized by a bright, active, and playful personality. She is a member who stands out for her excellent dancing skills and energetic stage presence. Standing 168cm tall, her nicknames include Chaeng and Kkaeng.

Park Jiwon is the second-oldest of fromis_9, aged 29. She is a member who stands out for her bright, active personality and unique positive energy. In particular, she plays a vital role in the team's music based on her solid singing ability and stable vocal skills, bringing songs to life with her powerful tone and rich expressiveness. Furthermore, while she shows confident expressions and gestures on stage, she is usually playful and cheerful, showing different charms between her stage persona and daily life. Standing 157cm tall, her nicknames include Megan and Jyeon.

Song Hayoung is the eldest member of fromis_9, aged 30. She is a member who possesses both a calm, soft atmosphere and a bright, lovely charm. While she usually shows a quiet and comfortable side, she is playful and cheerful when with people she is close to. In particular, she naturally expresses various song moods based on her clear, refreshing tone and stable singing ability, showing delicate vocals in emotional tracks. When dancing, her smooth, clean movements and natural facial expressions stand out, and she shows various sides on stage according to the song's mood. She tends to be warm and affectionate when communicating with fans, giving her a comfortable and friendly appeal. Standing 163cm tall, her nicknames include Hanyang and Habang.