once upon a time, there were eight dwarves living in an obscure house near a magic kingdom; one day, some chick showed up, requesting aid from the dwarves.  A vote was taken, and one of the eight dwarves 
("Bitter" -- the little-known 8th dwarf)  was kicked out, so the young lady could have his room.  Apparently, the vote's result had something to do with that dwarf's constant complaining and resentment (
(getting kicked out did *not* improve that dwarf's characteristic whining))...
Bitter adventured with the PathFinder Society for a few years, becoming some kinda hot-shot attorney (12-level inquisitor class), and returned a couple years later, with a restraining order -- forcing "Snow F. White" to leave the house (nobody is sure what the 'F' stands for)...
without Snow's moderating influence, Grumpy (the actual subject of this back story) became increasingly, well, grumpy  -- until one day the other dwarves couldn't take it any more, and voted him out.  Now, Grumpy is looking for Snow White, hoping that if she comes back to the house, it'll improve his attitude, and he can live with his brothers once again.
having no idea where to start looking for Snow White, Grumpy has joined a team of giant hunters (maybe she climbed a beanstalk?)...
(13 years ago, I ran a PFS Character named "Bitter -- the little-known 8th dwarf';  a year or two after I retired that character, I subsequently ran 'Snow F. White'... and now, this take on Grumpy will be a third installment in the ongoing saga of my particular version of the seven dwarves...)