"Eternal Night" descended without warning. On that day, the entire world went dark for a full 24 hours. Though the light struggled to return, the world had undergone some kind of change ever since.
Desires, resentment, fear... all took physical form under the power of humanity's frenzied imagination. All kinds of monsters lurked beneath the night sky, bringing harm to the world.
The dead wandered, nightmares repeated... More and more people died from the corruption of "Eternal Night." The light of the human world was being devoured little by little, and despair was spreading...
But when one door closes, another opens. As humanity's minds were corrupted, people also gained a certain power. Using it came at a cost, but humanity's pioneers were still willing to call it "hope."
Though the world was gradually being swallowed by darkness, Night Patrol members had no right to despair. Hunting monsters in the night was a destiny long since sealed...
Welcome to the Night Patrol. Let's fight "Eternal Night" together.