Were you looking for info on Witch Hunts?

Oblivious to the Wild Hunt

The Wild Hunt (ワイルドハント Wairudohanto?) is an annual event designed to hunt and capture wandering ghosts. The event consists of 12 stages, each performed in a different place with one day difference. Each participant must capture the ghosts that appear and the stage ends once all are captured. 

The elaborate experts trained for the Wild Hunt are called Wild Hunters and have gained popularity. Each one has magical weapons specially designed to capture the ghosts. While usually only they participate, other people can also be part of the Wild Hunt if they get a special permit.

The Wild Hunt can not be seen by ordinary humans. Only witches and other magical beings can see it, while the ghosts and the Wild Hunters are invisible to all the rest.