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World Trigger

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description World Trigger Overview

When a gate to another world suddenly opens on Earth, Mikado City is invaded by strange creatures known as "Neighbors," malicious beings impervious to traditional weaponry. In response to their arrival, an organization called the Border Defense Agency has been established to combat the Neighbor menace through special weapons called "Triggers." Even though several years have passed after the gate first opened, Neighbors are still a threat and members of Border remain on guard to ensure the safety of the planet. Despite this delicate situation, members-in-training, such as Osamu Mikumo, are not permitted to use their Triggers outside of headquarters.

help World Trigger FAQ

What are Trion and Triggers in World Trigger?

Trion is the energy generated by a person's trion gland, and Triggers are Border's devices for turning that energy into weapons, shields, or other tools. A combatant's available trion level affects which loadout they can use, so powers follow team tactics rather than unlimited magic.

Why does Border fight Rank Wars in World Trigger?

Rank Wars are organized team matches used to evaluate Border squads and help them improve before missions against Neighbors. Mikumo Squad's rise is tied to this system, which makes positioning, points, and team roles as important as individual strength.

How many World Trigger anime seasons are there, and who made them?

Toei Animation produced the anime, with the first season beginning in 2014 and the second and third seasons arriving in 2021 and 2021-22. Watch them in release order because the later seasons continue the expedition and Rank Wars story.

What is the difference between a Neighbor and a Border agent?

Neighbors come from the other world connected through gates, while Border is Mikado City's defense organization created after the invasion. Some Neighbors are enemies, but the series later shows that the label does not automatically mean every Neighbor is evil.

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