Santashipping

Santashipping is the ship of Argentum Sakaki and Perla Berlitz-Palmer. Although there are some hints within Forevermore, this ship never becomes canon on-screen, becoming canon a few years after the end of the trilogy. However, by Evermore, they are married with two children, Slate and Perlita. This, along with Primary, Ultramarine, and Rhapsody are one of the few ships that are seen as canon in both the Alpha and Beta Lines.

Hints
Forevermore:
 * Argent and Perla are seen together when they are first deposited in the past, to the shock of their older siblings, Jade and Plato.
 * Plato talks to Argent, and Argent says that he was perfectly fine with their relationship. He also says that even if he wanted to, it would be difficult since Perla is so oblivious.
 * He also says that he would never hurt her.
 * When Perla drags Argent into a conversation about her running off, he seemed uncomfortable but he told her to be careful, anyways.
 * Argent usually lets Perla drag him around without complaining.
 * On Valentine's Day, Ethan teases him about Perla, asking him if he was gonna kiss her. Argent panicks for a moment, but regains composure, glaring at him.
 * Perla then shows up, with her hair back to normal, and says that Argent told her that she looked better like this, and Argent agreed.