What would happen if the sky in your "city" faded away forever?

"Really, can anyone make a sky? What is the sky, after all, food to cook? And if so, how can one make a sky?" asked Emmelia.

"Look at the clouds with your heart, bravely, and send your wish as high as you can. The answer is only the sounds of seven. Spell it out, hum it, daydream it, and the answer will come near, silently. You need three elements and a magical machine," whispered the leaves.

A fantastical story... almost real... about a girl, a tree, and a machine that stirs magical elements and creates a sky! But is that enough? A fairy tale about healing, the power of will, dreams, and love.