World Trigger
2014 • Toei Animation
- Format
- TV
- Aired
- 2014
- Episodes
- 73
- Status
- Finished
- Studio
- Toei Animation · TV Asahi
- Genres
- Action · Science fiction
One day, a gate to another world suddenly opens in Mikado City. Aliens invincible to Earth’s weapons, called “Neighbors”, start coming over. Earth’s only line of defense is a mysterious group called the “Border” who are armed with weapons called “Triggers”.
Four years later, the city has recovered from initial attacks and citizens of Mikado City have started to get used to the Neighbor’s attacks. Yuma Kuga, a transfer student, and his classmate Osamu Mikumo find themselves fighting a Neighbor that suddenly appears. Osamu, who is actually a Border agent, activates his Trigger but is unable to defeat it. This leaves Yuma to activate his own Trigger and defeat the alien. Yuma reveals that he is not part of Border and is actually a Neighbor who has transferred from the other side.
Synopsis from AniList
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Where it came from
World Trigger originated as a manga series by Daisuke Ashihara, serialized in Weekly Shonen Jump starting in 2013, before being adapted into this anime series by Toei Animation in 2014. The narrative centers on a secret defense agency known as Border and their efforts to protect Earth from 'Neighbors'—invaders from another dimension—using specialized weapons called Triggers. The series stands out within the shonen genre for its emphasis on tactical, team-based strategy rather than relying solely on the individual power scaling typical of its peers.
The 2014 anime production was directed by Mitsuru Hongo, who sought to capture the intricate technical details of Ashihara's world-building. While the initial television run faced challenges in pacing and animation consistency due to its long-running format, the series garnered a dedicated following for its complex character dynamics and unique combat system. Its design aesthetic maintains a grounded, utilitarian military look, reflecting the agency-focused nature of the story, and it has since been praised for its enduring focus on intelligent, calculated skirmishes.
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