Dark Masters Edit
Main article: Dark Masters
The Dark Masters are a group that consists of four powerful Mega-level Digimon who took advantage of the DigiDestined returning to their world to conquer the Digital World and convert it into Spiral Mountain, which is divided by four territories. The Adventure 02 series also reveals that the Dark Masters also defeated the Digimon Sovereigns and sealed them from the Digital World prior to the DigiDestineds' return. As the DigiDestined learn, the defeat of each Dark Master causes their domain to cease and be eventually reconstituted into the recreated Digital World.