On September 9, girl group TripleS revealed its 8th member, Gong Yu Bin.

In her member reveal teaser, Gong Yu Bin captivated onlookers with a pure and glowing beauty. In addition to the 8th member reveal, TripleS launched a mysterious teaser for 'Gravity', a keyword related to TripleS's activities. 

According to TripleS's agency, 'Gravity' is the name for the process through which 'MASTERS' create 'Dimensions' using the 'Cosmo' app, introducing a never-before-seen girl group system. 

Meanwhile, TripleS has so far revealed a total of 8 members including Yoon Seo Yeon, Jung Hye Rin, Lee Ji Woo, Kim Chae Yeon, Kim Yoo Yeon, Kim Su Min, Kim Na Kyeong and Gong Yu Bin.