GHOST

Ghost(ゴースト, Gōsuto) is the Lightning Funeral Wreathand possesses the Lightning Mare Ring. Ghost is, in fact,Byakuran from another parallel world, who was brought over pending the destruction of his world. Ghost himself is present only as a shape made up of Dying Will Flames, remaining a mutant who can only drain the Flames from others. While testing Ghost's abilities, a number of ships were sunk and Ghost was locked up within the same Vendicare Prison as Mukuro Rokudo. Although he seemed to have no personality to speak of, while dying, he did cry out in pain. Byakuran said that during the process of bringing Ghost to his world, he destroyed the parallel world that Ghost came from.