Dragonfly - Warrior Woman of the Samurai Book, #5

Even the strongest woman has her breaking point, and Keiko has reached hers. Sick at heart and wanting only to leave her past behind her, Keiko is drawn to the sea. Seeking refuge from the world that has nearly torn her spirit apart, she boards the first ship she finds and sails away gladly from her former life. Although Keiko thinks she is done with her past life, fate has much more in store. Her ship is taken by a band of wokou-desperate pirates who will kill to gain the treasure they seek.
But just like Keiko, the wokou captain hides a secret. He is a man who, like her, has walked away from his past life, and Keiko comes to believe that she has truly found a kindred spirit in this man who is not what he appears. Yet still, the gods are not ready to give Keiko the peace she craves. Once more, the way of the samurai calls to her and she has to face her greatest challenge. Only this time, love and honor are two sides of the same coin.