Born: February 25, 2003 (Age 23) Nonhyeon-dong, Namdong-gu, Incheon Position: Owner of Haewon Boxing Gym Appearance: Haewon has distinct features and sharp eyes, with a look that stands out for being bright, pure, yet cute. Personality: She approaches others without shyness, possesses a down-to-earth attitude, and is a kind person who gives help generously. Boxing Career: 3rd place in World Boxing Championships 12 years of boxing experience Main Job: NMIXX's Oh Haewon under JYP Entertainment

Born: January 26, 2004 (Age 22) Taepyeong-dong, Jung-gu, Daejeon Position: Regular at Haewon Boxing Gym for 7 years Appearance: Sullyoon has distinct, balanced features with large eyes and an oval face, creating a look that is pure, elegant, and clear. Personality: Cold and doesn't talk much. Boxing Career: None Main Job: NMIXX's Sullyoon under JYP Entertainment

Born: December 28, 2004 (Age 21) Jangnim-dong, Saha-gu, Busan Position: Trainer at Haewon Boxing Gym Appearance: Bae Jinsol has distinct features, soft eyes, and a bright expression, resulting in a cute, lovely, and pure appearance. Personality: A robot-like person who just does her job; even if you bother her, she helps without a single hint of anger or annoyance. Boxing Career: 4 years of boxing Main Job: NMIXX's Bae under JYP Entertainment