Titanlights

Luzking is the friendship ship between Luz Noceda and King from The Owl House fandom.

Canon
The moment Luz show King she was taken in by his adorable appearance and hugs him while talking to him in baby talk. King on the other hand hates being treated like a baby or a dress up doll and that is why he wasn't so fund of the young human Eda brought back home. Before they met King had lost his crown of power and only a human can help them get it back. So after Eda tells Luz that King was once a powerful demon until he lost his crown and it caused his form to change to what it is now, they enlist Luz in their task to get it back with the promise of returning her home afterwards. When Luz realized that King's crown of power a paper crown that someone can get at a human restraint she left used until she learns how important it is to King from Eda. Luz's time with King and Eda has told her that is it alright to be a weirdo and that they need to stick together. Since King's precious crown was destroyed by the warden before they made their escape, Luz gives him a re-placement crown to cheer him up and when she was about to leave King makes a sad face. In the end Luz decides to stay with him and Eda so she can become a witch and can be her true self. King gets Eda to let Luz stay by telling her that the human can make them snacks and once he saw how soft her sleeping bag Luz tells him sleep with her.

The next day in "Witches Before Wizards", Luz's job of yesterday's events not being a dream gets her to hug King, while he doesn't want her to give him baby kisses. Since Luz doesn't know the Boiling Isles like they do, Eda has King keep Luz company and out of trouble when she sends them to sell her elixirs. When they had one more elixir package to drop off, Luz confines in King about the Boiling Isles not being the magical world she has dreamed again and after they met a wizard who can give Luz the magical experience she was expecting King laughs at her for believing the wizard's claim about Luz being destined for something great. King soon learns that the wizard was a Puppetmaster demon who has drawn Luz into a trap and goes to save her with Eda. Even though Luz was able to defeat the demon and reunited with King and Eda, she still felt down about the fact that the creepy magical world is still nothing like her book, so to cheer her up King and Eda show Luz a high up view of the isles.

At the beginning of "The Intruder" Luz records a video of King fighting the ducky sock before he tries to give Luz a intrusion on demons like him, but Luz wasn't taking it seriously and is maining focused on her magic training and this hurts King. Since he has started to warm up to Luz and wants to be her friend. After Luz got hurt from being through back into the safety of the Owl House when it started to boiling rain, King places a plaster on Luz's scratch before placing one on his face to make them "Boo Boo Buddies" and she fell in love with their buddy name.

Fanon
While King is Eda's sidekick, there have need times when he does serve as Luz's partner in crime and King's pet's form has fans ship them as friends than lovers. Even though there have been fans who have drawn King as a human-like person from the Boiling Isles.

On AO3, the ship has 69 fanfics.

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Trivia

 * The show's opening and ending has Luz making her way to King.
 * On the cover of Luz's favourite book in "A Lying Witch and a Warden", there is a little dog-like creature that looks a bit like King.