Animation, Action, Sci-Fi |
A gate to another dimension was burst open in Mikado City, and Neighbors started to invade our world. However, a mysterious organization, Border, fought them off using the Neighbors' technology called "Triggers". They'd been preparing for this day for a long time. 4 years have passed since then, a schoolboy named Yuma Kuga has transferred to Osamu Mikumo's class.