This is a character for a new comic book idea I've been working on called [insert title here when I come up with it]. I was gonna go with Ghost World, but turns out that's a comedy from 2001 about some high school girls. The premise involves an alien coming to Earth for conquest only to find everyone is already dead, ghosted in fact. This main character here and the alien go on adventure to make the most of the situation and try and figure out what could have wiped out all of humanity.
