The 7 charismatic ladies of girl group Rainbow is set to make their comeback and will commence through a special reality show to be aired through Y-STAR. The girls are scheduled to reveal their long awaited comeback through the show next month through the special show called SPECAL D-DAY which will also be a documentary. You'll get to know each and every girl personally as they get up close and personal. The first of 5 episodes will air on the 31st through Y-STAR, and their comeback will slowly be revealed next month.