"A stage inspired by Squid Game, with a clear blue sky and white clouds painted in a cartoonish style. In the center of the background, a wall with iconic geometric symbols: a green circle, a red triangle, a yellow star, and a blue umbrella. The ground is sandy, with the texture of a children's playground, and small colorful fences surround the area. The atmosphere should feel surreal and slightly eerie, simulating a children's space with a touch of mystery. The lighting is soft, with warm tones that highlight the vivid colors of the stage."