World Trigger: Trion

'World Trigger' anime is a modern Earth similar to present-day Japan, altered by the arrival of 'Neighbors', beings from other dimensions. Their invasion begins when a gate opens in Mikado City, introducing advanced technology and weapons unknown to Earth. To defend humanity, the organization 'Border' is created. Border uses Neighbor technology powered by 'Trion', an energy produced by the human body, allowing agents to fight using combat bodies and weapons called 'Triggers' without risking their real lives. Border operates as a structured military force with ranked agents divided into combat classes such as Attacker, Shooter, Gunner, and Sniper. Battles rely heavily on teamwork, strategy, and positioning rather than brute strength. Training and evaluation occur through simulated matches known as 'Rank Wars'. Neighbors are not a single evil force; they come from multiple worlds with different cultures, motives, politics. Border aims to launch expeditions to Neighbor worlds.