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.+ More
Characters & Voice Actors

Ikusawa, Ruriko
Main
Kawasumi, Ayako
Japanese
Ukiya, Shun
Main
Sakurai, Takahiro
Japanese
Asagiri, Reiko
Main
Taylor, Julie Ann
Japanese
Banba, Choutarou
Main
Koyasu, Takehito
Japanese
Fen, Fei Ling
Main
Hoffman, Bridget
Japanese
Fukuoka, Yasutaka
Main
Shiozawa, Kaneto
JapaneseRecommended for you
The Fire Hunter
TV
24m
Getter Robo Arc
TV
24m
Semi and the Magic Cube 2
TV
13m
Thermae Romae Novae
ONA
29m
The Way of the Househusband
ONA
17m
High-Rise Invasion
ONA
25m
Semi and the Magic Cube
TV
15m
Pui Pui Molcar
TV
2m
Swallowed Star
ONA
22m
Peerless Martial Spirit
ONA
11m
Foreordination
ONA
24m
Beyond the Ocean 2
ONA
15m
In/Spectre Season 2
TV
22m
Spirit Chronicles
TV
22m
TROPICAL-ROUGE! PRETTY CURE
TV
24m
Thousand Autumns
ONA
28m