Beautiful Swordswoman" tells the story of Yuan-Yuan (Wong Ling, "Zatoichi and the One Armed Swordsman"), a young lady who is bored to sit around at home with her brother and their rich daddy, so she secretly learns how to fight with swords. Her mysterious master asks her to become an assassin. She gets the names of her target persons and kills them, until one of the names... is the name of her father! When she tells her governess, it is impossible for her follow that order, the governess reveals a terrible secret..