It could be an artist. Artists often find inspiration in stories, especially those that seem never - ending. They might use their art, which could be a form of dance in this context, to express their connection to such a story. They let the elements of the never - ending story flow through their movements, creating a unique form of artistic expression.
There could be a dreamer who dances to the never ending story. In the realm of dreams, the boundaries are blurred, and one can be caught up in a story that has no end. This dreamer, through their subconscious, might be expressing a desire to be part of an unending narrative, and their dance is a manifestation of that within the dream world. It could also be someone who has a very vivid imagination and is so immersed in a fictional or real - life story that they feel as if they are dancing to its rhythm, even if it's just in their mind.
Perhaps a character in a fantasy tale might dance to the never ending story. It could be an elf or a magical being that has a deep connection to the never - ending nature of a particular story.