Legend has it that every year, in the night of the Hyakki Yagyo, the first full moon of August, cold winter winds blow from the northern regions, and the dead can walk the earth among the living. In this very night, a group of spell-casters leads a caravan of ghosts, lost souls, and demons, guiding them to the underworld, and everything that once was and no longer is, reverses itself onto our plane of existence, only to return to the underworld by sunrise.
