GateKeepers 21 ~ Complete Boxset (Japanese Version)
[AC071]

Set in Japan circa 1969, GATE KEEPERS finds unconventional guerilla tactics being used by a group of soldiers known only as the Invaders who are apparently trying to slow Japan's recovery from WWII. The second season of the show begins as the Invaders plan a new attack, led by old foes Ghost Girl and the revived Kaiser Kikai. Later, Ayane tries to recruit a new member from her high school, Miyu, who is interested until she discovers that the Invaders are human.