The base and the glass are no different from any other snow globe, but it holds an endless void inside it. When two young sisters jokingly request for it to show them its magic, it gives them the power to fill it as they please. Within that dimension, they might as well be goddesses--but to the world at large, they're still confused, frightened children.

The younger sister, bitter and lonely, thinks it's a chance to make a better world than our own. The elder sister just feels responsible for protecting the innocent pastel quadrupeds they've created. But can two children really be the goddesses the pony race needs? And when monsters begin to threaten the ponies, what must the sisters sacrifice to create the Equestria they dream of?