Arthanus, if you're looking for some ideas to tie your character in to the story of the "task force" - perhaps your character was sent to 'get rid' of her, because they believe either she'll bring some honour to the family or she'll die and they'll be rid of her? Alternatively, reading your bio she absorbs the spirit of a wolf, but now she has a tortoise spirit inside of her and the description for Spirit Hunters says she can only hold one spirit at a time? Perhaps the tale of how she killed a tortoise is connected somehow to the events that bring her to the group?