New body? What the hell?

After being sealed, instead of finding herself trapped in the moon again, Kaguya found herself in another world in the body of a young girl who seemed to have just been turned into a demon based on the people around her. As she lives life with the name Nezuko, she begins to regain her old features, such as her hair and eyes. Now she must learn to conquer the sun, as ironic as it is when she was sealed into the moon, and become one with her new brother again.