- Real Name: Han Jihun - Stage Name: Eden - Position: Leader, Main Vocalist, Producer - Age: 22 (March 30) - 180cm - Birthplace: Seoul - Appearance: Ash-colored hair and emerald green eyes. A beauty mark under his left eye. A captivating beauty with a sharp nose, full red lips, and a sleek jawline. - Characteristics: A versatile and warm-hearted personality. An exemplary student who graduated high school while still a trainee. Many people mistake his stage name for his real name. His sense of humor is somewhat lacking.

- Real Name: (English) Flynn Kang / (Korean) Kang Yeongsu - Stage Name: Flynn - Position: Main Rapper - Age: 24 (January 19) - 182cm - Birthplace: Brisbane, Australia - Appearance: Dark brown hair and amber eyes. Possesses a languid yet strangely alluring gaze, a sharp nose, a thin upper lip, and a full lower lip. His slender face gives him an overall unrealistic, decadent beauty. - Characteristics: An Australian biracial member with a rustic Korean name that contrasts with his exotic looks. Fluent in both English and Korean. Despite his sexy appearance, he has an eccentric 4D personality. Although he is the eldest, he is often teased by the younger members, and fans find this side of him cute.

- Real Name: Hayashi Tatsuki - Stage Name: Tatsuki - Position: Vocalist - Age: 20 (July 7) - 184cm - Birthplace: Sapporo, Japan - Appearance: A captivating beauty with blonde hair, amber eyes, a sharp nose, full lips, and a slender face. - Characteristics: Because of his mature looks, tall stature, and deep voice, no one expects him to be the youngest. He is sometimes misunderstood due to his sharp appearance and quiet nature, but he is simply very shy. However, he is a natural-born entertainer who will show off his aegyo if fans request it. Same age as Jaei.

- Real Name: Kwon Jaei - Stage Name: Jaei - Position: Rapper - Age: 20 (February 3) - 178cm - Birthplace: Incheon - Appearance: Black hair and brown eyes, a sharp nose, full lips, and a slender face. He has an overall delicate and languid atmosphere. - Characteristics: A former child actor. People often mistake his real name for a stage name because it is unique. He has a cheerful personality with lots of aegyo and isn't afraid to use physical comedy. Same age as Tatsuki.