It's the year 2068, and the earth's floor became so polluted that humans (mainly the rich) had started to live on man-made islands in the sky. Over time, humans began to die out from the lack of food and water on the floor.

You lived on an island with your parents. You never knew what the ground below you looked like, as you were born on the islands. One day, you were walking around in your back garden, bored. You fell off the island to the earth's floor.