Deltarune/Ships

Seavil
 Seavil is the non-binary ship between Seam and Jevil from the Deltarune fandom.

Canon
Jevil and Seam were once close friends and co-workers. Seam worked as the Court Magician and Jevil worked as the Court Jester. However, one day Jevil encountered a "strange someone", presumed to be the, and went insane. Following this event, Seam was forced by the four Kings to lock Jevil away.

Seam started to see the world more pessimistically after Jevil went crazy. When talked to, Seam explains that Jevil's crazy talk has made them see the world "darker, yet darker" ever since. They became nihilistic. They are willing to let Jevil go free even though the chaos caused by it would be someone of the greatest chaos the land has ever seen, as they believe the end will come sooner or later anyway.

Kris, Susie and Ralsei can find Jevil on the ?????? floor of the Card Castle. If they talk to Jevil, he mentions that Seam knows about the key.

When Kris and their team talk to Seam after meeting Jevil, Seam tells the three about the circumstances behind Jevil's imprisonment. They tell the heroes they can take care of Jevil once and for all. They give the team Broken Key A, as well as a hint of where Broken Key B is located.

If the team talks to Seam after defeating Jevil, the shopkeeper reveals even more about their past and is surprised that the team managed to successfully defeat Jevil.

Fanon
Following the release of Deltarune, Seavil has become one of the most popular ships in the fandom, and the most popular not involving any of the main three (Kris, Ralsei, Susie) or pre-existing characters from Undertale.

On AO3, Jevil/Seam is the second most popular ship in the Deltarune fandom, and the most popular ship for both characters. The non-romantic ship between the two is the second most popular ship for both characters, only behind the romantic ship. The non-romantic ship between the two is also the sixth most popular ship in the Deltarune fandom, and the second most popular non-romantic ship, behind the one between Kris and Susie.

Fandom
FAN FICTION
 * Seam/Jevil on FanFiction.Net

DEVIANTART

Spamvil
 Spamvil is the slash ship between Spamton and Jevil from the Deltarune fandom.

Canon
While the two are not seen interacting with each other in the game, it is implied that they know each other. When talking to Spamton in his store, he mentions wanting to surpass "that damned clown around town".

Fanon
The ship became popular in the Deltarune fandom because they are both secret bosses with strong personalities and they have an interesting dynamic.

Despite not being problematic at all the ship gets hate mostly because it interferes with other popular ships like Seavil and Swatchton.

Trivia

 * In the Spamton Sweepstakes charity event Q&A, when talking about Jevil, Spamton references a divorce meme, leading many fans of the ship to believe they are canonically divorced.

Swatchton
 Swatchton is the slash ship between Spamton and Swatch from the Deltarune fandom.

Canon
Spamton and Swatch are implied to have met during Spamton's "big shot" era when he was living in Queen's mansion, where Swatch runs the Colour Cafe. During this period, the stranger who helped Spamton rise to power abandoned him, causing his sales to go down. He became obsessed with an artifact in the basement, the machine he eventually uses to become Spamton NEO. If you talk to Swatch about the basement, he reveals that the robot was the embodiment of a lightner's dream that he helped to create, as the representation of a digital art program.

Swatch seems to hold bitterness towards Spamton, referring to him as "that crooked salesman", and remarks that it was a pity, "to think he was once a valued customer". More dialogue reveals that Spamton's iconic pink and yellow glasses and monochrome suit are a failed attempt to impersonate Swatch in order to sneak into the basement and gain access to the NEO robot. Swatch sells Big Shot Bowties in his store, which were originally Spamton's merchandise, but they have the brand name cut off. During the Spamton Sweepstakes Twitter Q&A, Spamton says "TO THINK HE ONCE PRETENDED TO [be my fr13nd NOW]! THERE TO [always listen to a] [shoulder to cry on]. BUT IN THE END HE ONLY [always listen to a] [Smoking Hot @$$ NOW]!!!" In simpler terms, Spamton used to think of Swatch as a good friend, but in the end Swatch was more loyal to Queen. In contrast, Swatch only refers to Spamton as a valued customer, suggesting that these feelings were mostly one sided and that Swatch probably acted that way out of professionalism.

Fanon
Although Spamton turns into the dealmaker glasses in canon, a popular fanon trope is of Swatch finding Spamton in a dumpster in Castle Town after the events of chapter 2 and deciding to look after him. This usually involves a lot of fluff and slow burn until they admit their feelings for one another. Other fan content portrays their relationship during Spamton's big shot era, usually with Spamton visiting the Colour Cafe a lot because he has a crush on Swatch, despite this not really being canon.

Fandom
Spamton G. Spamton/Swatch tag on AO3

swatchton tag on Tumblr