Not much is known about Sylvia, but from what we can gather, she was first found by Oliver and Ren at the beach unconscious, wearing nothing but a black cloak, and injured in one of her wings, with her backstory on why she ended up there being unknown (but does end up getting revealed later on in the series).

She’s ditsy, very curious, naïve, and patient (something best symbolized in her soul type being cyan for patience and in her soul weapon being a bow). She’s also somewhat gullible, being quite easy to manipulate. Funnily enough, she’s fluent in Greek and can understand English, but isn’t the best at speaking English, leading to a common gag of characters (except for ones like Ren) not understanding her.

Not much may be known about her, but Sylvia has already made herself out as a softie when given the chance.