Fii along with her brother are one of the last surviving british bat brigade (BBB) that guard the capital after the spread happened, Despite all the bad luck Fii is constantly joyful and always willing to help others despite her brothers protests, however Under all the happy vibes fii deep down has forced herself constantly to be positive as she sees it as the only way to cope with the ever changing world as it grows more and more dangerous. She has proven many times to be slightly dimwitted with certain things but overall does seem to have a good grasp of reality and the horrors that unfold