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Many years ago, the death of the emperor sparked riots and civil wars that ravaged Atlantia. Upon the throning of the young king Yaiba, treacherous rebels were executed to restore the peace the country once had. However, tainted by this radical act of governance, Atlantia continues to be enveloped under the shadow of oppressive rule. Tsurugi Tatewaki is a spunky teenager who grew up in the rural countryside with little memory of his birth parents. One day in his home, he stumbles upon a mysterious sword that transforms into a Battle Spirits card. When armed forces from Atlantia confront Tsurugi with their sights set on procuring his card, the secrets behind Tsurugi's past seemingly begin to unravel. Accompanied by a droid named Bringer, Tsurugi makes his way to the capital of Atlantia and encounters supposed warriors who wield similar swords. As his world is slowly turned upside down by the gradual appearance of greater mysteries, Tsurugi may have to question everything he knows, including his very own judgment on what separates good from evil. [Written by MAL Rewrite]

Dan Bashin is a spirited teenager known for his aggressive playstyle in the card game Battle Spirits, earning him the title of "Clash King." One day, a mysterious green-haired girl transports him to the otherworldly land of "Grand Rolo," where disputes are settled by card duels. Upon his arrival, Dan is immediately thrust into a conflict between the kingdom's imperial army and its oppressed natives. There, he learns that he is a prophetic warrior known as a "bearer of cores' light," chosen to save the land from its evil king. Accompanied by a young boy named Zungurii and the eccentric witch Magisa, Dan travels across Grand Rolo and encounters the other chosen warriors through card battles. With the name of the Clash King gaining fame throughout Grand Rolo, secrets that lurk within the shadows of the kingdom's colonial past begin to surface. Only time will tell if Dan's campaign will affect the world on a scale much larger than he ever could have imagined. [Written by MAL Rewrite]

Sequel to Battle Spirits: Kakumei no Galette.