Technology, science, and industry—this is 1969 Tokyo, and there is no better time to be alive! But a shadow looms quietly around every corner: "Invaders" have infiltrated the populace, and nobody knows who or what they are.
Only the members of the top-secret agency AEGIS know of their existence. Covertly fighting the enemy is their job, but only those with the ability to open "Gates" to another world can truly defeat them. Within AEGIS is a specialized task force known as the "Gate Keepers." Composed of extraordinary individuals with a variety of Gate-related abilities, they are the only ones who can save humanity from the vicious Invaders plaguing the planet.
Shun Ukiya is an average high school student who lives with his widowed mother and little sister. While on his way home from school one day, he comes across a group of Invaders heading toward his house. In a desperate plight to save his family, Shun discovers he possesses the ability to open a Gate, allowing him to harness massive amounts of energy. With his newfound ability exposed, he catches the attention of AEGIS, and particularly the interest of one of its Gate Keepers, Shun's childhood friend Ruriko Ikusawa.
[Written by MAL Rewrite]+ More
Characters & Voice Actors

Asagiri, Reiko
Supporting
Banba, Choutarou
Supporting
Fen, Fei Ling
Supporting
Fukuoka, Yasutaka
Supporting
Hippie
Supporting
Houjou, Yukino
Supporting
Kageyama, Reiji
Supporting
Kanetake, Meguro
SupportingRecommended for you
Ranma ½: Nihao My Concubine
Movie
1m
Senryu Girl
TV
12m
Slayers Evolution-R
TV
24m
Super GALS!
TV
24m
Yu-Gi-Oh! 5D's
TV
24m
Moriarty the Patriot
TV
23m
Assassination Classroom: Meeting Time
Special
10m
Fate/stay night: Unlimited Blade Works
Movie
100m
City Hunter Movie: Shinjuku Private Eyes
Movie
95m
Gunslinger Girl
TV
24m
Hakata Tonkotsu Ramens
TV
23m
Dropkick on My Devil!! Dash
ONA
23m