In the land of Oz, ostracized and misunderstood green-skinned Elphaba is forced to share a room with the popular aristocrat Glinda at Shiz University, and the two's unlikely friendship is tested as they begin to fulfill their respective destinies as Glinda the Good and the Wicked Witch of the West.

Deriving its name from a root meaning “covered”, or “hidden”, the Huldra are one of several Rå, or wardens, and are associated with the ‘hidden folk’ of the legends of Scandinavia, woodland analogues to the aquatic sjörå, or mermaids, and the mountain cave-dwelling bergsrå.