Tokyo, 1969. Earth is under attack from the "Invaders." The public is unaware of this but to the secret organization, A.E.G.I.S., the threat is known, and it is up them and their special powered "Gate Keepers" to stop this invasion.
Comedy OVA series based on the Type-Moon Gag manga, Take-Moon. It focuses on funny and absurd situations happening to the various characters of the Type-Moon franchises, mostly from Fate/stay night and Tsukihime.
It has been thirty two years since the Invaders have been defeated, and A.E.G.I.S is dismantled, with only a few Gate Keepers left. One of them, Ayane Isuzu learns that Machine General and Devil Count are back and they must save the Earth once more.
