Two years after the temporary defeat of Galactor, a cruise ship is attacked by Leader X, after returning to earth, killing nearly everyone on board. One of the survivors, a young child named Sammie, is captured by X and rapidly aged and brainwashed into the bizarre and androgynous villain, Giersadora. They are the new leader of Galactor in the place of Berg Katse. Although they have the appearance of an adult, Giersadora is not immune to throwing childish tantrums and behaving immaturely. They are the child of Dr. Sylvie Pandora.
Similar to their predecessor, Berg Katse, Giersadora is intersex, though unlike Katse, they lack the ability to switch from male to female.
Due to the character's androgyny, many foreign language dubs have been inconsistent on whether to gender the character as male or female.
Content compiled by AnimeList.moe from publicly available sources.