Mayu Ikeda

was a ten year old girl who died in a fire she caused six months ago. She had become a vengeful ghost attempting to kill her little brother.

History
when she argued with her mother because her younger brother Satoru was sick. She runs away but comes back later. She puts her scarf over a radiator (something her mother told her not to do) and hides in the closet to get back at her mother for what she perceives as her mother ignoring her. The scarf catches fire and leads to the apartment they are living in to catch fire as well. Mayu's mother gets Satoru out safely but Mayu is still hiding and dies. When Satoru goes into a coma, his friend Sota takes his sister Kagome to vist them after she learns from Myoga about the Soul Piper turning ghost children into evil spirts. Kagome saved Mayu from Hell after she learned her mother loved her and asks her mother for forgiveness. Mayu visted Kagome at the older girl's home to thank her.