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.

World-class conductor Franz von Stresemann sends his favorite music students Shinichi Chiaki, Megumi "Nodame" Noda, Ryuutarou Mine, and Masumi Okuyama to the Nina Lutz Music Festival in Nagano to study under other famous masters. During their car ride, Chiaki is irritated by his friends' antics, but later wakes up from a nap to discover that they took a detour to a beach in Niigata. Mine tans under the bright sun while Nodame and Masumi enjoy a refreshing swim; Chiaki sits inside the beach club, trying his best to hide his fear of the sea. When Nodame suggests renting an inflatable boat to row over to a small island, will Chiaki be able to keep his secret? [Written by MAL Rewrite]

The peaceful days turn out to be short-lived as the shadow of another Selector Battle looms large. Kiyoi Mizushima is the first to notice that things are amiss, and she makes her move to put an end to the cycle of darkness.The Battle this time includes a new card, "Key," and has been set up with rules different than before. With both the mastermind and their motive shrouded in mystery, the darkness grows ever deeper and more menacing. Suzuko Homura, Chinatsu Morishita, Hanna Mikage, Ruuko Kominato, Yuzuki Kurebayashi, Hitoe Uemura, and Akira Aoi, the Selectors gather once again. (Source: ANN)

Locomon, a train digimon, has suddenly appeared in the real world. All the tamers scramble to stop the train before it reaches its final destination: the portal into the Digital world.

(Source: ANN)