Dan Bashin, also known as the "Clash King," achieved fame for his aggressive playstyle in the card game Battle Spirits. However, his mundane life is turned upside-down when he's transported by a green-haired girl to a new world called "Grand Rolo." Here, conflicts are resolved through card duels. Upon arriving, Dan is thrust into a conflict between the native inhabitants and the imperial army. He discovers that he's a prophesized warrior who's destined to save the land as the "bearer of cores' light" and rid it of an evil king. With the help of Zungurii and Magisa, Dan embarks on a journey across Grand Rolo to battle other chosen warriors. As Dan's renown as the Clash King spreads, he uncovers sinister truths about the kingdom's colonial past. It remains to be seen what his impact will be on the world, but only time will tell.