World Trigger (Vol. 1) - Daisuke Ashihara

When the Gate Opens, the Battle Begins

In World Trigger Vol. 1, mysterious portals called "Gates" appear across Mikado City, unleashing deadly alien creatures known as Neighbors. Humanity seems doomed—until a defense organization called Border steps in, using stolen alien tech called Triggers to fight back.

Enter Osamu Mikumo, a modest high school student and Border trainee. His life takes a wild turn when he meets Yūma Kuga, a mysterious new transfer student who hides a powerful secret—and may not be from Earth at all.

Main Themes of the Volume

• Alien Invasion & Survival
• Humanity must adapt or perish as monsters from another dimension arrive.
• Team Strategy & Tactical Combat
• Emphasizes brains over brawn with smart, squad-based action scenes.
• Secret Identities & Mysterious Powers
• Yūma’s abilities defy Border’s tech, raising questions and eyebrows.
• Friendship & Duty
• Explores the bond between warriors and the cost of protecting others.

Why you should choose this manga

• From Shonen Jump, home of top battle manga hits
• Great balance of action, strategy, and sci-fi worldbuilding
• Dynamic character development and layered story arcs
• A fresh take for fans of My Hero Academia, Attack on Titan, or Blue Exorcist
• Adapted into a successful anime series

World Trigger Vol. 1 opens the gate to an exciting universe of high-stakes battles, clever tactics, and interdimensional warfare. Perfect for fans of intense team combat and long-term plot twists, this sci-fi shonen delivers both heart and firepower.