Magpie is a lot of things.

An enormous, potentially illegal hybrid.

A "blind seer" of sorts - ei is legally blind and psychic to a degree, though eir precognitions aren't always clear.

Mostly, Magpie is that strange friend who's really into astrology and pop punk and won't stop quoting memes when you're trying to focus. Who is ei. Where did ei come from. Why does ei feel the need to predict the future using only extremely danceable songs.