Duelists use D-Boards to Duel and are used to ride the Data Storm. Some Duels conducted here are done so under the Speed Duel rules instead of the Master Rules. The Data Storm disappeared five years prior to the beginning of the story, and reappeared under unknown circumstances when Playmaker challenged a Knight of Hanoi to a Duel. When a Duelist is in LINK VRAINS, their physical body is enshrouded in a blue sphere.