The evil forces of Zerdantis, god of darkness, have been released onto the peaceful world of Aria after being sealed for many years. Izen and Liberto, two heirs to the throne of Superta, protector of Aria, compete to destroy the dark spirits, secretly summoned by Liberto in a desperate attempt to repel and gain the support of SupertaÃ¢ï¿½ï¿½s congress and citizens that favored Izen. As Liberto obtains the Ark Sign that once awakened the devil, Great Oracle Yui summoned heroes from other dimensions to battle Liberto and the demons. The year is 2016. Players on CardMon Hero are experiencing a glitch in their system. But this is no glitch. This is Yui, asking YOU to join forces with your guild and save Aria!