World Trigger 1 features story and art by Daisuke Ashihara.

Destroy thy Neighbor! A gate to another dimension has burst open, and invincible monsters called Neighbors invade Earth. Upstanding Osamu always does the right thing, whether it means pitching in to save Earth after school or turning the other cheek to bullies. But when he meets a feisty humanoid Neighbor named Yuma, everything that he thinks is right is turned on its head. Can the two natural enemies ever become friends?