As society rises from the ashes of war, cybernetically augmented arena fighters battle for fame and fortune... or die trying. It's the 19th century, and the world has entered the Era of Rebirth, recovering from the devastating flames of war. The sport of mechanical martial arts has galvanized the nations. Cybernetically augmented fighters turn their blood into steam and their bodies into brutal fighting—and killing—machines. Young Levius is one of those arena battlers, hell-bent on winning in order to simply survive.

The Sengoku era gave birth to many historical legends. One of them is Naoe Kanetsugu, the brilliant military general of the Uesugi family. Together with Maeda Keiji, a legendary warrior on the battlefield, who become lifelong friends with each other, they carve out a piece of history in the most dangerous and volatile time in Japan's history. The two men recall their beginnings and the journey they took to get to the accomplished position they now sit at.

107 years ago, the Moon was destroyed in a massive cataclysm that shattered Earth's former satellite into 81 quintillion tons of orbital debris. However, thanks to super-science, the Earth itself was saved and today no one really thinks much about that century-past disaster. Which is why when teenage Haruka Amami auditions for something called the Idolmaster Project, she THINKS she's trying out to be a singing idol. Instead, Haruka finds herself at a secret school run by the Mondenkind Agency, living with a group of other girls who have also been selected as candidates to pilot an iDOL - an advanced robot specifically designed to intercept falling chunks of moon rock. Except, the people who run the Mondenkind Agency aren't exactly knights in shining armor. And then there's the question of whether the iDOLs are really JUST robots. Because from almost the first moment, Haruka starts to feel emotions resonating from within the iDOL called Imber.

The survivors of Kanto's Hell Earthquake built a new city and christened it "Hope Town". However, this peaceful town becomes a nightmare when it's raided by the motorcycle gang, "Hell's Wind". They abduct the women while the remaining townsfolk are left helpless against them. Meanwhile, a boy, Subaro, meets Jun. Jun's lover was previously murdered, and the duo help one another to fight against Hell's Wind. The battles are getting more and more difficult, but with the appearance of Violence Jack, the citizens seem to gain the upper hand against Hell's Wind. (Source: AniDB)