Serendipity Sylvana's Links
The two have similar personalities; they're both spacy, dreamy nerds who are obsessed with romance novels. The only thing that sets them apart are their attitudes; while Ayla is outgoing and friendly, Serendipity is quiet and withdrawn. Apart from Calypso, who's like a mother to her, Ayla gets along the best with Serendipity.
Besides Helios, Serendipity is the sibling that Leto gets along with the best. Not only are they content to be silent around each other, but they have similar tastes in art and music.