Due to a clichéd dramatic past, Lilith is cold, sarcastic and doesn't trust anyone - until she meets Nano. Something ironic about her makes Lilith feel slightly more alive - and superior, trying to impress Nano with human oddities and basic inventions. But she always retains her sarcastic and uncaring nature. Her interests include writing stories/journal entries, and psychology, as she is extremely sharp. 

I want Lilith to have a slightly deep voice, only showing emotions when she feels them intensely. A good example for her voice would be a stereotypical gyaru in an anime.