Fiona Jensen, adopted by Zhao Dehou. The old man left his estate to his biological grandson, bequeathing her a stinking ditch and "clean up Pearl Creek". Her two older brothers mocked her. Fiona cleaned the ditch, finding pearl oysters. She used the manual, founded "Pear Blossom Pearl", and led the village wealthy. Her two older brothers grew jealous. Fiona protected her industry, set up a charity fund, fulfilling the old man's last wish.