World Trigger

The gate to an unknown world opens in Mikado City, which faces malicious invaders called Neighbors. An agency called Border responds to the attack.

Border agents hurry to the site of a Neighbor attack, only to find it in ruins. Meanwhile, Osamu tries to size up Yuma, a self-proclaimed Neighbor.

Trion soldiers enter through an irregular gate that opens at Osamu’s school. Wanting to protect his peers, he charges recklessly towards the Marmod.

Osamu reluctantly takes credit for defeating the Marmod to cover for Yuma, but is then chewed out for unauthorized use of a Trigger in real combat.

Kitora gallantly takes on an unknown Trion soldier dubbed the Ilgar, but is thwarted when it goes into self-destruct mode and heads toward the city.

While S-Rank member Jin investigates the cause of the irregular gates, Yuma follows the advice of his guardian Replica and does his own digging.

Osamu reveals that Chika attracts Neighbors. Yuma further explains the reasons why the Neighbors come to Earth and why they target certain people.

The Miwa Unit launches a brute attack on Yuma. Worried for his friend, Osamu is perplexed by Replica’s explanation of why Yuma refuses to fight back.

Border’s brass is split on what to do when Yuma’s Black Trigger obliterates the Miwa Unit. The truth behind Yuma and his father is gradually revealed.

Jin makes a surprising offer to Yuma and invites him to visit Border’s Tamakoma Branch. He accepts on one condition-- that Osamu and Chika also come.