Osakabe-Hime (長壁姫 Osakabe-hime, lit. Long Wall Princess) is the master of Himeji Castle and the sister of Kame-hime.
Along with her sister, Kame-hime, Osakabe-hime appears and becomes one of the 47 Yōkai Warriors in episode #99 of the fifth anime adaptation, City Castle Tower! Yōkai Kame-hime. She is the 23rd of the chosen 47 Yōkai Warriors and represents Hyōgo Prefecture.
In the fifth series, the sibling is noted to be "higher than yōkai" and their spiritual powers are on completely different level than normal yōkai. It is easy for them to cause large-scale disasters such as to vanish an island, to cause massive tornadoes, to transport the whole water of lake Biwako the largest lake in Japan. and to take human souls of an entire city.
Osakabe-hime greatly varies her origins according to each stories from an old kitsune to a human spirit of royal blood or a lover of emperor, or a mountain goddess.