Vanoé

Vanoé is the slash ship between Vanitas and Noé Archiviste from The Case Study of Vanitas fandom.

Canon
Leading up to their first meeting, Vanitas has travelled with a friend, Dante, to find and heal Amelia Ruth, who is a vampire with a curse. Meanwhile Noé, also a vampire, has followed rumors and a mysterious letter that speak of the Book of Vanitas. The two end up fighting on the airship La Baleine due to a misunderstanding. Noé thinks he is protecting Amelia from Vanitas, and he threatens Vanitas with a knife. However Amelia transforms into a monster and tries to kill Noé. After Vanitas saves Noé and gains his trust, Noé allows him to curse Amelia of her affliction.

Shortly afterwards, two police officers arrive and attempt to arrest both Vanitas and Dante. Vanitas is threatening the officers when a large piece of debris from the fight breaks loose and hits him on the head, knocking him through a hole in the airship. Noé rushes to catch Vanitas and managed to grab his ankle but they both end up falling down to the the streets of Paris.

Somehow, the pair of them survive the fall, landing through the roof of a church. They talk for a while, learning each others name, and Vanitas explains he is just a human that wants to help save Vampires from their curse. He asks Noé to help him, but Noé refused. They head back to the ship so that Noé can get his belongings and pet cat, but security quickly finds them and identifies Vanitas as an intruder on the airship. Noé, injured from the previous fight with Amelia, passes out and they're both shipped to prison.

Eventually Noé wakes up with Vanitas there, they talk some more and eventually Noé agrees to be a bodyguard. Vanitas is thrilled Noé will be helping him, however much Noé insists Vanitas is the one helping him. Vanitas tells Noé he finds him very interesting. After a while, a guard appears and kicks them both out of prison, stating the entire incident has not been made public knowledge. Despite Noé's refusal to co-operate, Vanitas introduces him to Dante as his new bodyguard and partner, causing protests from both Noé and Dante.

Noé and Vanitas have extremely different personalities and approaches to life, which causes various conflicts between the two (most notably, their argument during the chasseurs arc). Despite all of this, they make a good team and have grown to genuinely care for each other. Vanitas frequently spends his time getting separated from Noé as the latter wanders around whatever location they’re in and inevitably gets lost.

Noé states that at the end of their journey, he will kill Vanitas for reasons and circumstances yet to be revealed.

Fanon
Vanoé is the most popular ship among the Vanitas no Carte fandom. On Ao3, the slash ship currently has more than 5 times the amount of works than it's closest romantic het ship rival, JeanneVani. It also far outpaces it's nearest slash rival, NoeAsto. More than 50% of the roughly 600 Vanitas no Carte works on AO3 feature Vanoé, either as a slash ship or as a friends ship. The friends ship is not as popular as the slash ship, however the number of friends only works is still roughly equal to any all other competing ships. The anime is currently still airing and so the fandom, and it's ships, are not yet fully developed.

Fanfic
Noé/Vanitas tag on Ao3

Twitter
Vanitas x Noé tag on Twitter