It was build to show the world where gravity changes. To make that possible, we build a cylinder structure made by steel frames that rotates 360 degrees, and we put a wooden made room set inside of it. When it rotates, the room inside of it also rotates and the props fall and swing. That helps to make look like as if the world changes its gravity. The room itself was designed very realistic that looks like real Japanese college student would living in. This gap between realistic scenery and unrealistic movement made the scene even more interesting.