The first generation idol group debuted on April 15, 1997, and will be commemorating their monumental 20th anniversary with a series of projects, which you can check out in their solar system-themed plan! A 20th anniversary exhibition, a concert, a photobook & DVD, a fan meeting, and of course, a brand new album, set for release April 28!

Be on the lookout for more info on Sechskies's comeback!