In 3498, the Worldcoral was attacked by criminals. It tried to protect itself, first by releasing purple lightning in its surroundings, then by sending the Lustrals to clean the perimeter.

Three days later, after many loss amongst both the Lustrals and the human citizens of Nelphis, the Worldcoral exploded. This tragedy was traumatic for the entire city, but during such fateful events, heroes are bound to emerge. Amongst them, the Sedater Klow Carven, who managed, with the help of other officers, to save many lives.