There are four legendary artifacts -- the Emerald Shield, the Sapphire Trident, the Ruby Crown, and the Amethyst Orb Pendant. Each of these treasures are the keys to unlocking two creatures that have been sealed for a long time. Should they be released from their prison, catastrophe will happen. Journey with Nell, a 17-year-old aspiring knight from Planet Artemis, who undergoes an incident that changes the lives of not only his friends and many others, but himself as well.