The series centers on Luz Noceda, a 14-year-old Dominican-American human girl who accidentally stumbles upon a portal to the Demon Realm. She arrives at the Boiling Isles, an archipelago formed from the remains of a dead titan, and befriends the rebellious witch Eda Clawthorne, also known as "The Owl Lady", and her adorable demon housemate King. Despite not having magical abilities, Luz pursues her dream of becoming a witch by serving as Eda's apprentice at the Owl House.