Billlie continues to drop more teaser photos to prepare for their new mini-album, 'The Collective Soul and Unconscious: Chapter One.'

The girls have already released various teaser content for their upcoming comeback and will continue to unveil more teaser photos until the album releases on February 23 KST.

On February 19 at midnight KST, the members of the girl group released more teaser photos showing their inner child at the playground this time. 

The full mini-album 'the collective soul and unconscious: chapter one' drops on February 23, so check out the teasers above and below until then!