Real Name: Kang Chaena Stage Name: Chaena Nationality: Korean Position: Main Vocalist Height: 174.8cm Date of Birth: 2006.04.18 Education: Graduated from Hanlim Arts High School Family: Parents, 1 younger brother

Real Name: Kim Yujin Stage Name: Yui Nationality: Korean Korean Age: 19 Position: Leader Height: 171.4cm Date of Birth: 2008.08.27 Education: Graduated from Lila Art High School (Early Graduation) Family: Parents

Real Name: Minase Sei Stage Name: Sei Nationality: Japanese Korean Age: 19 Position: Main Rapper Height: 168.9cm Date of Birth: 2008.12.05 Education: Enrolled in a Japanese high school Family: Parents, 2 younger sisters (Ages 10, 14)

Real Name: Hayashi Mio Stage Name: Mio Nationality: Japanese Position: Main Dancer Height: 165.7cm Date of Birth: 2010.10.13 Education: Dropped out of a Japanese middle school Family: Parents, 1 older brother (Born 2009)