Detective Keibu Pepper is a half-Neighponese private detective who works on cases the Manehatten Police Department at One Police Plaza refuse to touch.

While investigating a murder committed by a new serial killer in the city, he uncovers an underground world involving foal trafficking and hedonism from not only ordinary Equestrian citizens, but also the elite in Canterlot.

And what does it all have to do with a previously undiscovered pony village deep in Dragon territory?