3rd doesn't have Lilun.
Also while yes the 2e comics are cool and I like them (in the corebook at least) you could just show them the comics. There's also Tale of the Visiting Flare (I think that's what it's called) that serves as a good intro.
This is one reason why Solars are the Exalt given in the core book: you don't need to know anything about the larger world from the get-go. "Your world is animist, you have divinely-granted magical powers, you are being hunted by magical ninja monks that think you're a demon" is generally enough.
Hard disagree on Tale of the Visiting Flare. It has Psycho Homosexual Rakan Thulio and gay love described as a twisted and empty version of love. It's bad enough that the current devs have disowned it.