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. [Written by MAL Rewrite]

In the year 2046 humans are moving away from using robots and begin to trust them less and less. In this time life becomes very perilous for the beings known as seconds. The seconds are the most recent line of robots, as far as the public knows. This is the world Detective Ross Sylibus lives in. Detective Sylibus is transferred to Mars by his request after his partner was killed by a robot. As he arrives he falls headfirst into a murder where a country singer on his flight was murdered. He steps off the plane and watches as a scene unfolds and he meets his partner, Armitage a female cop with a major attitude. A rash of murders begins when yet more women are killed. As the investigation is continued a secret is uncovered. There is another line of robots known as Thirds. More and more Thirds turn up missing, as a serial killer who is intent on wiping out all the Thirds runs rampant. Armitage in her quest to put the murderer to justice reveals a secret. She herself is a Third.

After a scooter accident provoked by a mysterious woman's vision, Angelino, a deadbeat like thousands of others in Dark Meat City, starts getting violent migraines that are accompanied by strange hallucinations. Along with his good buddy Vinz, he tries to figure out what's happening to him while threatening men in black seem determined to catch him. (Source: Annecy)

After the final battle against Gaito, Sara had given her life to remain with him. The sea world is now at peace, but only with six mermaid princesses. While Caren, Noel, and Coco have returned to their kingdoms, it should be time for Lucia, Hanon, and Rina to do the same. After all, Mitsuki Tarou is leaving for Germany, and Doumoto Kaito is heading to Hawaii. Lucia is devestated, and when things couldn't get any worse, Kaito is lost at sea! Worst of all, a strange angel named Michel has appeared, wanting the mermaids to join him. But on the lighter side, Sara's spirit tells Lucia of Sara's successor, a young mermaid named Seira. The mermaids are in for another adventure!