Nowhere to the earth a gate to a distinctive world suddenly opens. Creatures called neighbors or "Near World People" begin showing up from the gate. Humans are over powered at to begin with when their weapons are found to be futile against neighbors.
Until a puzzling organization shows up that's able to repulse the neighbors attacts.
The Organization called "The National Defense Against Neighbors".
And has suited the neighbors innovation called "triggers".
TNDAN built a school where in they are training the students to develop their trion to use their triggers properly and defeat the neighbors.
