Once upon a time, there is a little village in China, which is a happy village. This village is called Wang village because people who stay their last name is Wang. All of them are farmer. They wake up early in the morning, and work in the farm until evening.

While their parents working, the children play in the village. Everyday, parents always tell their children to stay away from the pond outside the village. They believe that there is a demon in the pond, which they call Gui Hu. Gui hu is covered by green flowting thing, which they do not know what it is, and believe that that is the demon's house.