The Missing Piece

The story follows a circular shape-like creature that is missing a wedge-shaped piece of itself.

It sets out on a grand adventure to find the perfect piece to complete itself, singing as it goes.

However, after finding the exact-sized wedge, it realizes that it can no longer enjoy the things it used to, like singing or rolling slowly.

It decides it was happier searching for the missing piece than having it and continues its search happily.