Drifloon are feared by parents, for they are known for abducting curious children and taking them away into the sky, never to return. Yet they are as mysterious as they are terrifying, for the children are never seen again; no bodies, living or dead, are ever found. And although modern technology has reduced the number of abductions, it has not solved their mystery, for whenever Drifloon are followed by cameras or tracked by helicopters, they will not take children to their usual hangouts, but return them back home to their parents.

The reason Drifloon can not be found is because they take children to a world where grown men and women from this world have never ventured: a world of distorted dimensions and bizarre architecture where the banished Giratina reigns as king. Connected to our own through an oft-vanishing portal in some uncharted portion of the sky, a society has formed in this reverse world from Drifloon abductees. Because ghosts are as common there as normal pokemon are here, and Drifloon as common as Starly or Pidgey, it has been called the afterlife – but it is no such thing, and the children there are very much alive.

Every Friday, the Drifloon post attempts to deliver messages from the lost children – many of them by this point grown, but unable to have children because of the strange physics of their new world - through a post office in the Valley Windworks. Yet the Drifloon are normally scared away, for fear that they have come to abduct more children. Few letters ever arrive at the intended destination, and those who seek to tell the story of the Drifloon abductees soon learn that no matter how many letters they show, some things are too strange to be believed.