A new unit group is in the works! Idol group Rainbow has announced a new unit group called Rainbow Blaxx.

On January 3, a set of teaser images along with a message about this unit group was released. The message announced that one member of Rainbow Blaxx will be revealed per day starting from Monday, January 6 through various SNS accounts.

The teaser images show various parts of the female body such as the thighs, shoulders, bare stomach and legs in what seems like sexy black lingerie! The images foretell a very sexy concept that differs completely with Rainbow’s previous unit group, Rainbow Pixie. That sub unit released their single “Hoi Hoi” in January 2012 and featured members Seungah, Jisook and Hyunyoung.

Check out the steamy images below and stay tuned on Soompi for information on the upcoming debut of Rainbow Blaxx!