In a time when a third of mankind was wiped out by an enemy known as Worms, the human race had to resort to using weapons of mass destruction to win. But only 10 years later the Worms return. And only a special few girls, the Sky Girls, who pilot large mechanical frames called Sonic Divers, have a chance to sway the outcome of this new conflict.

— written by XellosPL

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Alternative version: Sky Girls