Split the Sky and Weave Dreams

"Cracks" occur in the Sky Realm due to the collapse of ancient wars/rules. The cracks will leak the violent energy of the Sky Realm (such as out-of-control lightning, space turbulence), erode the surface world, and lead to frequent natural disasters (heavy rains, thunderstorms, land desertification). The cracks cannot heal naturally and must be mended manually by the "Sky Weaver" using "star threads" (condensed from the original energy of the sky realm). Each crack has a different shape, location, and degree of danger.