tripleS will debut their 10-member sub-unit with the mini-album "Assemble" and title track "Rising." The ten members are ChaeYeon, SeoYeon, Kaede, NaKyong, HyeRin, DaHyun, YuBin, JiWoo, SuMin, and YooYeon.
They just drop a commercial teaser for their upcoming debut.
Check out the video above.
I'm glad the basically have the same concept as Triple S AAA