InuYasha spots a benevolent yōkai called the Tatarimokke, leading the souls of dead children with its tune. It is harmless when its eyes remain closed, but it becomes fearsome when its eyes are opened. Meanwhile, Kagome has found the vengeful spirit of Mayu, the older sister of Sota's comatose friend Satoru. Mayu is a likely candidate to be taken to the underworld unless she relieves herself of hatred over her mother and jealousy over her younger brother.