ZONE, the band that paved the way. They are back currently only as a duo (as per their super girls band message performance).

Lead Vocals, Guitar - Miyu Nagase
Bass Guitar, Vocals - Maiko Sakae

They said they will be returning to music, but as of 2012 there has been no releases (the year is still early), but they did release a new live DVD in late December 2011. Tomoka Nishimura has left due to health problems (she was with them during their reunion but disappeared sometime in December 2011), not sure if she will be back, but hopefully she will be.

I was really touched when I first listened to Yakusoku ~August, 10 years later~.
Since this could be like a reply to Secret Base ~kimi ga kureta mono~, I almost cried! T_T
I hope they return...! When I listen to Akashi or Good Days, my heart beats faster, because I really like them >3<

I love them! Too bad I discovered them way after they disbanded. But those girls sure were really talented as true 90s artists.
I really hope they will come back together and release something new. It will be very interesting to see how their style changed.

Their latest release was in December 2011, it was a live DVD and some books on their reunion tour last year. The DVDs are really long (2 days of concert about 2 hours each) and worth it, the books just basically showcase their journey with some old photos and new photos. It was really nice overall to see them performing again, but I look forward to their new works.

Any news about TOMOKA? I hope she is alright.

I checked out ZONE back in 2009, they were not for me back then. I checked back every now and then but nothing changed. I checked again today 6 1/2 years later and I seem to really like their music! It pays off to check back on music, you never know what you might suddenly like what you had classified as "incompatible" years ago.