There are a couple of children that are playing a game. The specific rules of the game change constantly, but the underlying theme is the same: the children are pretending that they're gods.

"Well," says a girl who refuses to be outdone by her peers, "my domain has fairies in it!"

"No way, fairies aren't real, you can't make it have fairies!"

"Yes I can! Gods can make whatever they want! And, and I'd have them do everybody's chores!"

The other children are enamored with this concept, and the girl is immediately hailed as the best god ever (the god whose domain they're in overlooks this comment) and the children proceed to map out elaborate rituals based around the chore-doing fairies, because clearly they can't just leave it at just 'fairies do people's chores.' One such quirk involves the fairies showing up when a thing is drawn on the ground, because the god-girl would really rather not be constantly pestered to send fairies everywhere.

Such a thing is drawn. It's more effective than the children bargained for.