Tsukiyomi

Tsukiyumi was a human, a female samurai who once hunted demons. At her side as she hunted was another demon, her love, who changed his name to Hoshiyomi because of her and the love he bore her.

Hoshiyomi, in an effort to protect Tsukiyumi from draining herself by using her powers too often, has a demonic sword created. But the Naginata of Kenkon is too strong, and begins to possess Hoshiyomi. In an effort to save him, Tsukiyumi seals Hoshiyomi away until she can purify the evil weapon. Tsukiyumi successfully separated the Naginata into two swords, the Ken blade and the Kon blade, and hid them, but she dies before she can release Hoshiyomi.

Hoshiyomi is released when a sacred barrier around Mount Hakurai is dispersed, allowing him to find the Kon blade. He seeks the Ken blade, which was held by the Houjou family. Akitoki bears the Ken blade to the Furai Shrine at Shoun Falls where the blade can be purified.

After recombining the two blades back into the Naginata of Kenkon, Hoshiyomi is confronted by the spirit of Tsukiyumi whom he blames for betraying him. She tries to explain what had happened, but Hoshiyomi is too consumed with rage. In the end, Tsukiyumi replenishes Kagome's spiritual power so that she and InuYasha are able to overcome Hoshiyomi and the Naginata of Kenkon.