World Trigger

Ninety-nine episodes exist, and Toei is starting over

The first run stretched to seventy-three episodes between October 2014 and April 2016, and fifteen of them, the Fugitive Arc, were written for the screen with no manga chapters behind them. In December 2025, Toei Animation announced a Reboot Project that will adapt the same manga again from its first chapter.

Kenji Kawai wrote the music, the composer of Ghost in the Shell in 1995 and of the Ip Man films. Mitsuru Hongo directed the first forty-eight episodes and Kouji Ogawa the rest, while Morio Hatano took over for the two seasons that followed and holds the same post on the new version.

The Story

A gate to another world opens in Mikado City, and creatures called Neighbors come through it. The defence agency that answers, Border, fights them with their own technology: Triggers, which turn a personal energy called Trion into weapons. Osamu Mikumo is a C-rank trainee, and the new student he befriends, Yuma Kuga, is himself a humanoid Neighbor, and hides it from Border.

The manga has run since February 2013, first in Weekly Shonen Jump and, from December 2018, in Jump Square, passing fifteen million copies in circulation by July 2023. Daisuke Ashihara interrupts it regularly for his health, from a stop of nearly two years in November 2016 to a one-month break in spring 2026.

The Ideal Audience

Three seasons and ninety-nine episodes, and Common Sense Media puts it at fourteen and up: armed combat throughout, and a plot that turns on invasion, sacrifice and revenge. Border sorts its recruits into ranks, and the three arcs the new adaptation has singled out are the Border enlistment, a large-scale invasion and the B-Rank Wars. We would point it out to anyone who wants an alien war run like an organisation chart.