Long ago, Princess Snow Kaguya tried to cover the Earth in ice, but failed when the Ginzuishou melted the ice and saved the planet. She has now made her way to Earth to try again. A piece of her comet has been lost and she cannot proceed without it. She sends her minions, the Snow Dancers, to search for the missing shard. A young astronomer named Kakeru Ōzora finds the shard and keeps it in his observatory.