Long, long ago, the Gods of Chaos were worshipped and feared all over the world. One in particular, Mag Menuek, god of destruction, was the most fearsome of all. But his reign ended when the Holy Knights sealed him away inside a gem for what they thought was forever…until one day, eons later, when that gem washes up on the shores of a rural seaside town in Japan and is picked up by a young girl named Ruru.