In this world, there is a forest which makes the clouds in the sky. These clouds are created from a specific type of trees within the forest, and once produced, they will be carried away by the wind. There are times when the clouds are too heavy and don’t float straight up into the sky. These clouds may enter a city causing a nuisance such as blocking a driver’s view. There are times when newly made clouds are already filled with water, and will immediately rain once reaching the sky. Some people will capture these water-filled clouds as a water source for their homes or camps.