On February 11, a teaser poster was released, revealing that they would be releasing their second mini album on February 23.
The stylish looks and swags of the six members stand out.
In 2016, announced plans to debut a new girl group now.
This group has no leader and they officially debuted on November 10, 2021.
The group debuted on November 10, 2021 with their first mini album.
In addition, they changed the social media account name to Billie, and they opened an official Facebook page and fan community, attracting the attention of fans.