World Trigger

World Trigger, also known as WorTri, is a Japanese manga series written and illustrated by Daisuke Ashihara. The story is set in Mikado City, where a gate to another world opens, and monsters called "Neighbors" start invading. To combat these monsters, a mysterious organization called "Border" emerges, using technology called "Triggers" acquired from the Neighbors. The protagonists are a mysterious transfer student named Yuma Kuga, who is actually from the Neighbor world, and Osamu Mikumo, a secret Border trainee. The manga was initially serialized in Weekly Shōnen Jump in 2013 before going on hiatus due to the author's health. It later moved to Jump Square. It has been adapted into an anime television series by Toei Animation, spanning three seasons. The first season aired in 2014, the second in 2021, and the third from 2021 to 2022. In addition to the manga and anime, there are also associated video games. World Trigger is known for its unique battle system and character development, receiving positive reviews. It was the 20th best-selling manga of 2016, and by July 2023, the manga had over 15 million copies in circulation.