Lia - The mature, down to earth. Once said famous worlds like "The last will be the first".
Yeji - The true gemini queen, has two personalities " monster performancer and aegyeo queen".
Ryujin - The cool swag queen. She looks like she didn't notice you, but sure as hell she did.
Chaeryeong - The sassy one around her unnies but ever so responsible and reliable when needed.
Yuna - The ball of sunshine, she's always full of energy and puts it into making everyone's day better.
ps: It was very hard for me to do a different description for Yuna and Chae as they are consistently the sassy ones and youngest members.