Her real name is Jang Nayoung, and she has a pet Ragdoll cat named Blue. Her personality is 60% 'T' (Thinking). Her nicknames include Nyangnyeom Chicken and Yangnyeom. She is the cute youngest member of QWER, in charge of piano and electric guitar. She loves and is very good at gaming.

Her real name is Lee Ah-hee. She is the eldest member of QWER, possessing a mature and sisterly aura. She is in charge of the bass.

Her real name is Hong Jihye. She is slightly younger than Magenta but older than Siyeon and Hina. She practiced boxing for three years. She is the leader of QWER and is in charge of the drums.

The vocalist. She is older than Hina but younger than Magenta and Chodan. Her nickname is 'Sijjoki' because she acts the most childishly. She loves donuts and used to be an idol in Japan.