Shiro no Yuukyuu Kuro no Eien

Asuna is asked by her dying mother to hand a jewel charm to Taira no Kiyomori who is resides in Kyoto. At the Taira resident, she is mistaken as Kiyomori's another daughter with another woman. Asuna is grandly welcome but before she get to meet Kiyomori, she sense something evil lurking inside this resident, something that intend to harm and take Kiyomori's life away.