Bell Daikokuten rules the Bey graveyard called Makai no Mon, where he boasts an unbeaten record and calls himself the true Demon King. Wielding the mysterious Dynamite Belial, he hijacks broadcasts worldwide and declares war on every Blader. Faced with this unknown Bey, legends such as Valt Aoi rise to challenge him. The ONA mixes spinning-top sports battles with action, adventure, comedy and sci-fi.