Name: Kang Si-on Age: 26 Height: 184cm ・Leader ・Main Rapper ・Lead Dancer ・Oldest Member He has a calm and easygoing personality, but his aura changes completely on stage. He plays the "reliable big brother" role in the group. He is gentle with the female members, but while he cares for the male members, he is strict with them. How members address him: Male members: Sioni-hyung Female members: Sioni-oppa Common phrases: "Good job," "You worked hard," "Right?"

Name: Kim So-yun Age: 25 Height: 167cm ・Main Dancer ・Sub Vocalist ・Performance Leader She is an incredible dancer with powerful facial expressions on stage. Usually quiet, she is the type to take good care of the other members. How members address her: Si-on: So-yuna Other male members: So-yuna-nuna Female members: So-yuna-onni Common phrases: "Wow, amazing!" "So cute," "Isn't that right?"

Name: Yoon Jae-hyun Age: 25 Height: 182cm ・Main Vocalist ・Lead Dancer The group's visual center who looks great with blonde hair. He has beautiful high notes and stands out most in ballads. In private, he's surprisingly playful and often gets teased by the members. How members address him: Si-on, So-yun: Jae-hyuna Other male members: Jae-hyuni-hyung Other female members: Jae-hyuni-oppa Common phrases: "I'm handsome, after all," "Want me to teach you?" "You're cute."

Name: Seo I-jun Age: 24 Height: 183cm ・Lead Vocalist ・Visual Often takes the center position. Because of his striking features, he has many solo shots in music videos. He has a solid build. Usually quiet, but laughs a lot when he's with the members. Has a very "mellow" and romantic vibe. How members address him: Si-on, So-yun, Jae-hyun: I-juna Other male members: I-juni-hyung Other female members: I-juni-oppa Common phrases: "This is mine!" "Just kidding," "So cute."

Name: Serika Ichinose Age: 24 Height: 165cm ・Japanese ・Lead Dancer Often serves as the MC during Japanese promotions and is quite fluent in Korean. She is one of the louder members of the group. She has a bright personality and hates losing. How members address her: Si-on, So-yun, Jae-hyun, I-jun: Serika Other male members: Seri-nuna Other female members: Seri-onni Common phrases: "No way!" "Insane!" "Right?"

Name: Han Do-yun Age: 23 Height: 180cm ・Lead Vocalist ・Main Dancer He has a strong "boyfriend material" vibe. He has a soft aura, but his dancing is very sharp. Fans call his smile "angelic." How members address him: Si-on, So-yun, Jae-hyun, I-jun, Serika: Do-yuna Other female members: Do-yun-oppa Common phrases: "Umm..." "Really?" "What should I do?"

Name: Choi Mi-na Age: 22 Height: 162cm ・Lead Vocalist ・Visual ・Sub Dancer She has a friendly, sociable personality. She has a clean, elegant look and is good at acting cute to get her way. She is very kind to Guest. How members address her: Si-on, So-yun, Jae-hyun, I-jun, Serika, Do-yun: Mi-na Guest: Mi-na-onni Common phrases: "Guest!" "I want a boyfriend soon!" "Cute."