In the final years of the Bakumatsu, wandering mercenary Yojiro Akizuki travels the length and breadth of Japan. And while he employs his sword in the usual fashion, he also uses it to help him locate supernatural items which he pursues with single-minded determination, often with bloody results. In the course of his quest, he crosses paths with a traveling theater group whose members have their own dark agenda. Is it a chance meeting or the result of some, as yet, undiscovered conspiracy? (Source: Sentai Filmworks)

Two years ago, the world was saved by Dan Bashin and the other light bearers of the cores. Having once risked his life in Grand Rolo's strife, Dan no longer finds passion in the mundanity of everyday card battles. When Dan desires to clash against stronger opponents, he is approached by Mai Shinomiya. She offers to bring him to the future, the stage of a new conflict where Dan's strength is needed. The two arrive in the year 2650, where civilization has been ravaged by the struggle for power between mankind and an otherworldly race known as Mazoku. As humanity begins to crumble under the dominance of the Mazoku, the hardened light bearers are destined to cross paths once more. Armed with new cards from the future, Dan and the other warriors must yet again bear the fate of humanity on their shoulders.

Keita Aono is an ordinary high school student who loves to chat with his friends about military technology and the girls in their class. One day, Keita is surprised and delighted by a new transfer student in his class, his childhood friend Hinoki Sai. But when Keita tries to catch up with Hinoki after school, he accidentally wanders into Bottom World—an underground amusement park whose opening was canceled due to an unexplained tragedy. As Keita explores the area, he eventually finds Hinoki in the cockpit of a strange robot. She is here on behalf of Akamatsu Industries, a company contracted with the secretive international organization Mode Warp to investigate strange cases of violence worldwide. After joining Hinoki in the robot, the pair attempt to defend themselves against the various attractions of Bottom World, which have come to life and become violent. However, they are unable to escape until a man with transforming powers—dubbed Betterman—joins their struggle. Faced with an enemy he does not understand and a slew of mysterious new technology, Keita joins Akamatsu Industries in a fight against a force they call Algernon.