Every year a flock of swans flies down to earth from the starry skies, where it makes up the constellation of Cygnus. When the swans land on a mystical lake, they remove their feathers and become human for a day. But an evil prince sees one of the swans transform into a beautiful woman and desires her so much that he shoots her mate and steals her away.

This is the story of how the swans find each other.