Girl Story has returned with yet another teaser for their upcoming debut, set for December 28th. Produced by Antz Star Company, this four-member dance group consists of well-known faces. Kim Hae In (born in 2001) has acted in the drama "East of Eden", and was featured various advertisements for LG Telecom;�Lee Youn Jeong was in "Marrying the Mafia";�Kim Chae Young was�the winner of a dance competition by Lotte Mall, and Kim Yuri was in SBS's "Catch Me the Stars." Netizens have already nicknamed the group as 'kid idols' due to their extremely young ages. The teaser released today features short descriptions of their personality along with a preview for their title track, "Pinky Pinky" from their debut single, "G-Story." The girls are currently preparing for their debut under the training of 3DCOLOR's Tofu, who is a back dancer for Taeyang and the dance trainer for After School. Check it out below, and tell us what you think about these 'kid idols' so far: Source + Photos: Daily Sports