She is a woman who was tailored to be Yuga's servant before her birth. Her identity and memory become fractured when she was brainwashed by Yuga in her adulthood. He engraves an enchanted snake tattoo on her back as a means to control her. She is told to find a man fit to become the perfect body for the Dark Lord's resurrection. Finding Haohmaru to be that man, she follows him for a chance to take him away to her master. Her soul becomes freed after Haohmaru defeats Yuga. 

Medium.

Pronunciation & context:
"How boring..."
(vs Wu dialogue)