In this dazzling, colorful world, countless wondrous things exist.
One day, the peaceful human world was suddenly invaded by a horde of immensely powerful magical beasts that crossed over from the Spirit Realm. They brought endless smoke and flames of war, forcing humanity to lose its homes one after another.
In the battles against the magical beasts, humanity gained mysterious powers and became Card Masters. Only after gaining this formidable power could humanity finally stand against the beasts.
Thus began the struggle between humanity and the magical beasts in this wondrous, vibrant world...
