Marcaniel

Marcaniel is the slash ship between Marc Anciel and Nathaniel Kurtzberg from the Miraculous Ladybug fandom.

Canon
Marc often looks at Nathaniel's drawings for inspiration with his writing. Marinette suggests that he and Nathaniel work together on a comic book. In fear of Nathaniel's reaction to his story, Marc takes Marinette's advice of showing him the book without telling him who wrote it. Nathaniel angrily denies Marc's offer of making a comic book together, thinking he's playing a joke on him. Marc becomes so upset that he is akumatized by Hawkmoth into Reverser. After he is de-akumatized and their misunderstanding is cleared up, the two end up making a comic book together.

They are frequently seen together in episodes such as "Frozer" and "Mayura. From the way Marc acts around Nathaniel and talks about him, it can be inferred that he has feelings for him. This was later confirmed by Feri González, who runs the official Miraculous Ladybug Mexico Twitter account.

In recent episodes they are seen sitting with each other and in "Party Crasher", both kiss Adrien on the cheek.

Fanon
Soon after "Reverser" aired, the two were shipped by fans. Most looked to how the two worked with each other and hoped for more interactions in season 3. The two have had several on-screen interactions, which further fueled fans to ship them. It was also thought for a while that Nathaniel would obtain the peacock miraculous and Marc, the goat miraculous, and that they would join the main superhero team and work together.

FAN FICTION
Marc/Nathaniel on Ao3

Nathaniel/Marc on Fanfiction.net

TUMBLR
Marcthaniel posts on Tumblr

MarcNath posts on Tumblr

Trivia

 * Feri González confirmed on Twitter that Marc identifies as part of the LGBTQ+ community and has a "fondness" for Nathaniel