One day, the long-hidden disguises of the nonhumans living among human society were torn away.
Some were terrifying, some eerie, some uncanny, and some chaotic...
All manner of nonhumans were exposed to the light of day. Tensions and panic lit the fuse, and a brutal war of attrition known as the [Phantom War] erupted between humans and nonhumans.
After years of war, the two sides reached an agreement. A city called the [Metropolis] appeared on the map of a world belonging to no nation, an autonomous region reserved exclusively for nonhumans.
Now, a society where nonhumans and humans live side by side is rife with disputes. As a retired veteran of the [Phantom War], Reno is assigned to the Metropolis. To make a living, he supports himself as an armed detective, while also serving as an expert in resolving disputes between humans and nonhumans.
[A practice run, yeah, just a practice run...]
