It used to be that the winter witch, Lumi, would win the fairy light decorating contest every year. Jealous neighbors began to get suspicious; there's no way any spell could make lights shine like that! After a bit of snooping, it was discovered that Lumi wasn't using fairy lights at all, but was enticing starshine dragons to nap amongst her trees! Lumi didn't face any repercussions, though--it's now common to find a few starshine dragons helping light up huts this time of year.
The Starshine Dragon can be obtained by collecting a total of 7,625 during the Jolly Jubilee.