Willow was born a fraternal twin meaning a boy and a girl instead of two boys or two girls. Her brother and her were very close and did everything together. One day while they were exploring together a dark type attacked them. Willow was able to get away and hide without getting hurt very much but her brother wasn't so lucky. Finally when the other dark type was finished and left her brother for dead she came out from hiding and ran to her brother. Not knowing what to do she drags him away to a cave and lays with him until he dies. Soon it gets dark and worried because they hadn't yet returned their mother ventures out to find them. She eventually finds Willow in the cave covered in her brothers blood and his body nearby. Horrified the mother brings Willow to the elders to be judged. Without thoroughly looking at the body because light types hate death and because Willow was the only one there when he died her essence was tainted with the essence of death they wrongfully assumed she had killed her brother and she was sentenced to banishment of being turned into a dark type. It didn't matter how much she pledged her innocents she was nocked out, transformed and stripped of her light type name. She awoke as lost soul and she already knew what had happened, everyone was told the story of light types being turned dark at a very young age. There may have been a silver lining though because since she had been there when her brother died and because they had been so close his spirit was tied to her soul and was always with her. But because of all the trama she had just gone though, the hate she received, and the guilt she put on herself for not being able to save him she pushed his spirit away, confining him to the back of her mind and began to hate both light and dark types. She hated the dark types for being the cause of her brother's death and she hated the light types for wrongly accusing her of killing him and sentencing her to such a fate. In her guilt ridden state she unconsciously formed a pair of ball and chains that she wore on her legs to stand as a physical form of her guilt that she drags around with her.