It's the not too distant future, and a metropolis flourishes in the crash site of an alien spacecraft. A-ko, a teenager growing up in this city, enjoys the life of an ordinary schoolgirl...along with incredible superhuman strength! But her carefree days are numbered. Her school rival, B-Ko, is not content to live in the shadows any longer. A-Ko's superpowers and good fashion sense may not be a match for B-Ko's evil genius and Mega-powered Fighting Robots of Doom!