A powerful dog demon and Sesshomaru's mother, was introduced in the 466th chapter of the InuYasha manga. She appears in the episode 9 of InuYasha: The Final Act. Sesshomaru's mother is an inuyoukai like her deceased mate, the Inu no Taishou. As such, she can transform into a giant dog demon as well as having more human appearance. As the mate of the Lord of the Western lands, Inu no Taishou, she is the Lady of the Western lands. She holds the Meidou Stone, which was given to her by Inu no Taisho. He told her that if Sesshomaru were to come by, to use it and "If you use Meidou-Stone Sesshomaru will be faced with great danger... However, you must not feel fear or sadness." This apparently was another…