Giulberto

Giulberto is the het ship between Alberto Scorfano and Giulia Marcovaldo from the Luca fandom.

Canon
Alberto meets Giulia when she stepped in to stop Ercole Visconti from harming Alberto and his friend, Luca. Despite Giulia helping them and getting them away from the cruel humans and that her seeing the two as fellow Underdogs was what got her to show them some kindness, Alberto wasn't very sure about her. From seeing her as an odd, loud, annoying human girl that he and Luca shouldn't stay near. Until Luca got Alberto to realise that they need her help in obtaining a Vespa, after learning about a race that Giulia two team members for. Giulia wasn't too keen on Alberto bothering her with his questions, but after he told her that he and Luca are runaways who want to help her win the race, she agrees to make them her teammates. Because couldn't let Giulia know that he and Luca are sea monsters, he agrees to do the eating part of the race while she takes care of the swimming part for them. Knowing that they don't have a place to stay in town, Giulia tells her father that Alberto and his friend are classmates of hers and asks Massimo Marcovaldo if they could stay with them. Alberto ended up becoming close to her father, while Giulia gets to know Luca than Alberto better.

When it came to trying for the race, Giulia was hard on Alberto as she prepares him for whatever pasta dish that might be used, as she pushed Alberto and his stomach to the limit. Giulia's eating coaching being very different to her bike coaching with, along with him seeing Giulia taking his place as Luca's friend, he began to resent her. Knowing that she'll turn on them the moment she learns their turn nature. Because Giulia was distracted with finally having friends in Portorosso, who help her to feel less like an outcast during the summer, she failed to notice Alberto's negative thoughts and feelings about her. As she continues to treat him as a friend and teammate, while Alberto starts to act cold with her and tries to keep Giulia from stealing Luca from him. Growing tired of Giulia being nice to him and failing to see that Luca picking her over him is hurtful on his end, Alberto decided to show Giulia his true form. He got the reaction that he expected from her, but didn't take into account that Luca would betray him and then have Giulia trying to defend Luca from him. Giulia was shaken by this after Alberto was forced to leave Portorosso, but she didn't her father that Alberto is really a sea monster and later discovers that Luca is one too.

Despite the way she treated Alberto when she saw his true form, she still saw him and Luca as her friends. As she tries to keep Ercole from killing them. Alberto is also shown to have forgiven Giulia when he and Luca put her over their need to escape, after Ercole knocked her down for trying to protect them. She continued to protect the two sea monsters from him and her actions are one of the things that got Massimo to still acknowledge Alberto as a child than a monster, who has won the race. Allowing Giulia to complete her long awaited goal as the Underdogs are rewarded as a whole team. Despite Alberto not being keen on the way Luca was with Giulia, he came to realise that Giulia meant no harm and that she'll look after Luca for him. While he moves in with her father, to keep him company when Giulia is away.

Fanon
Even though some might have treated Giulberto as a het ship, Alberto being adopted by Massimo has another group view it as a familyship. With Alberto becoming Giulia's unofficial adopted brother, and the way Giulberto is overshadowed by Luberto and Giuca. The popularity of Luberto had also got people to headcannon Alberto as gay, while having Giulia as the supported friend of his relationship with Luca. Whenever fans don't have the two as rivals for Luca's affections. That tension is the main reason why the gen fanfics on AO3 out number the het fics.

The sibling view and vibes people get off of them, has inspired them to paradelle Giulia and Alberto with other sibling duos or simply those who have a similar energy to them. Like Luz Noceda and Hunter from The Owl House, even though the two aren't siblings in canon the two do have a sibling like energy and has got fans to portray them as sister and brother. Just as they enjoy doing the same with Alberto and Giulia. Most fanworks on the two are mostly of a sibling-like nature, than the one between lovers or simply friends.

Fandom
FAN FICTION

Variations

 * Marcovaldo Family refers to the familyship between the two and Massimo Marcovaldo
 * The Underdogs refers to the friendship between the two and Luca Paguro