World Trigger Season 1 – The Ultimate Breakdown!

“A world of strategy, teamwork, and epic battles! The fight for survival begins!”

World Trigger is a sci-fi action anime based on the manga by Daisuke Ashihara. The story revolves around the battle between humanity and mysterious interdimensional invaders known as “Neighbors”. Standing as Earth’s shield is “Border”, a defense organization wielding powerful “Triggers” to fight back.

Unlike typical shonen battle anime, World Trigger isn’t about brute strength—it’s about tactics, strategy, and team coordination. Every battle is a mind game, every move has a counter, and every squad operates like a well-oiled machine.

This guide will deep-dive into Season 1 (Episodes 1-73), breaking down the story, characters, battle strategies, and unforgettable moments!

Table of Contents

What is World Trigger?

A Tactical Battle Anime Like No Other

Produced by Toei Animation, the legendary studio behind Dragon Ball and One Piece, World Trigger stands out with its unique combat system, rich world-building, and well-crafted strategic battles.

Key Features That Make It Special

• Tactical Depth – Power alone doesn’t win battles—strategy and teamwork are key!

• Expansive Cast – With 100+ characters, each with unique combat styles and abilities, no two fights are the same!

• The B-Rank Wars – A high-stakes battle arena where squads fight for promotion and honor!

Story Overview (Episodes 1-73)

Prologue: The Neighbor Invasion Begins

One day, a mysterious “Gate” appears in Mikado City, unleashing monstrous “Neighbors” onto Earth. These creatures possess supernatural abilities, making conventional weapons useless.

To counter this threat, the Border defense force emerges, harnessing “Triggers”, special weapons powered by Trion energy. Border’s mission? Protect humanity and prevent another large-scale invasion!

Major Story Arcs in Season 1

1. The Arrival of Yūma Kuga (Episodes 1-6)

C-Class trainee Osamu Mikumo encounters Yūma Kuga, a mysterious white-haired boy who single-handedly defeats a Neighbor. It turns out Yūma is not from Earth—he’s a Neighbor himself!

Yūma possesses a legendary Black Trigger, inherited from his late father, making him an exceptionally powerful fighter. As he and Osamu navigate Border’s rigid structure, Osamu realizes that strength alone isn’t enough to survive in this world—he must outthink his enemies.

2. Joining Border & The Birth of Tamakoma-2 (Episodes 7-21)

Osamu’s childhood friend, Chika Amatori, is introduced. With immense Trion reserves, she’s capable of firing sniper shots that could demolish buildings! But with great power comes great danger—her Trion attracts Neighbor kidnappers!

To protect her and grow stronger, Osamu, Yūma, and Chika officially join Tamakoma Branch, forming the squad Tamakoma-2. Their ultimate goal? Climb the Border rankings and qualify for the Expedition Team, which travels to the Neighbor world!

3. Large-Scale Invasion Arc (Episodes 22-37)

The Neighbor Empire of Aftokrator launches a massive invasion of Mikado City! Their goal? Abduct humans with high Trion levels and turn them into weapons.

Aftokrator’s elite warriors, including Hyrein, Viza, and Enedra, descend upon Border, overwhelming even the strongest fighters. Border’s top agents, including Jin, Tachikawa, and Kazama, must hold the line against this powerful enemy force.

4. The B-Rank Wars Begin! (Episodes 38-63)

With the invasion repelled, Tamakoma-2 enters the B-Rank Wars, facing off against veteran squads like Ninomiya Squad, Kageura Squad, and East Squad. These battles aren’t about sheer power—they’re about strategy, positioning, and mind games.

Osamu struggles as a fighter, but he shines as a tactician, devising clever strategies to outmaneuver stronger opponents. Meanwhile, Yūma dominates in close combat, and Chika must overcome her fear of shooting people.

5. The Final Battle & Growth (Episodes 64-73)

Tamakoma-2’s teamwork is pushed to the limit as they take on even tougher opponents. With every squad adapting, every move countered, and every strategy tested, they must evolve or be eliminated!

As the B-Rank Wars escalate, only the smartest and strongest squads will move forward to the Expedition Selection Exam.

Main Characters & Squads

Tamakoma-2 – The Underdog Squad

Osamu Mikumo is the squad leader and mastermind of battlefield strategies. Despite his weak Trion output, he compensates with tactical brilliance, making him an invaluable commander.

Yūma Kuga is a combat prodigy with inhuman reflexes and years of real battle experience. His adaptability in fights makes him one of the deadliest B-Rank combatants.

Chika Amatori is a sniper with an astronomical Trion reserve. Her shots pack the force of a cannon, but she struggles with the moral dilemma of shooting people.

The Elite A-Rank Fighters

Yūichi Jin is a future-seeing strategist and Black Trigger user. His ability to predict multiple outcomes makes him one of Border’s most formidable agents.

Masataka Ninomiya is a cold and calculated gunner with unmatched precision and firepower.

Sōya Kazama is a stealth expert specializing in invisible attacks with “Chameleon” Triggers.

The Aftokrator Invaders

Hyrein is the ruthless commander who manipulates cubes of death with his Black Trigger.

Viza is an ancient warrior wielding the legendary Black Trigger “Organon”, capable of cutting anything at light speed.

Enedra is a chaotic liquid-based warrior, capable of shapeshifting his body mid-battle.

The Thrill of Rank Wars & Battle Tactics

The Excitement of Rank Wars & Battle Strategies

Rules & Objectives of B-Rank Rank Wars

B-Rank Rank Wars serve as a stepping stone for A-Rank promotion.

Match format:

3–4 squads battle simultaneously in a battle royale-style format.

The battlefield map is randomized.

Victory is determined by points based on survival and enemy defeats.

Tamakoma-2’s Unique Battle Tactics

Osamu’s Wire Strategy: By setting up wire traps, Osamu enhances Yūma’s mobility in combat.

Chika’s “Can’t Shoot People” Dilemma: Since she refuses to shoot people directly, she instead destroys terrain to gain an advantage.

Highlights of Season 1

Final Thoughts: Why You Should Watch World Trigger!

If you love intelligent battles, mind games, and squad-based tactics, World Trigger is a must-watch! With its deep strategy, high-stakes combat, and unforgettable characters, the series is a refreshing change from traditional power-based shonen anime.

“The battlefield is ever-changing. Adapt, strategize, and survive—because in World Trigger, only the smartest fighters win!”