Dark Kingdom
In ', Minako Aino faces off with the Dark Agency"', a group of villains posing as a talent and idol agency. The Dark Agency manipulated idols into helping them gather energy for the Dark Kingdom. In the final volume of the manga, it is revealed that the Dark Agency was established by the Dark Kingdom. Their leader is , named after the mineral of the same name, whose real identity is Minako's love interest Phantom Ace. After Sailor V defeats him, the group dissolves and the Dark Kingdom begins to act directly, thus leading into the "Sailor Moon" series. They are never mentioned in the "Sailor Moon" manga or other continuities.