What's a bounty?

OC falls into One Piece world. However she is from another world, not ours. First attempt so beware. If not past 2 year time skip possible spoilers. Basically a priestess who has never seen any other person besides her retainer Carol, falls into the middle of the war. Does she need to get back to her people or is this where she is needed the most? Read to find out! Pairings later.