sesshoumarus mother

A powerful dog demon and Sesshomaru's mother was introduced in the 466th chapter of the InuYasha manga. She appears in episode 9 of InuYasha: The Final Act.
Sesshomaru's mother is an inuyoukai like her deceased mate, the Inu no Taishou. Thus, she can transform into a giant dog demon as well as having a 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, given to her by Inu no Taisho. He instructed her that if Sesshomaru were to come by, to use it, saying, "If you use Meidou-Stone Sesshomaru will be faced with great danger... However, you must not feel fear or sadness." This was apparently another test from the Great Dog Demon for his sons.
In demeanor, she seems similar to Sesshomaru, albeit with a certain playfulness, and likely influenced his initial attitude towards humans; observing Rin and Kohaku following Sesshomaru, she casually inquires if he plans to eat them. Watching Sesshomaru's trial after activating the Meidou Stone, she appears only casually concerned about the possibility of his death. After he refuses the escape route she offers, she seems mildly offended, complaining that, unlike his father, he "completely lacks any charm."
However, she does care about her son's well-being, as seen when she brings Rin back to life using the Meidou-Seki after witnessing his reaction to her death, and later when she questions Jaken on whether Sesshomaru is happy now that Rin is back. She appears in episode nine "Sesshomaru in the Underworld" of the second anime series "Inuyasha: The Final Act."
Although she is a daiyoukai, she has a good heart, chiding Sesshomaru for seeking to perfect the Tenseiga as a weapon of destruction rather than a weapon of healing. She also lectures him about the qualities needed to wield the Tenseiga, emphasizing the need for compassion, love, and a pure heart. This suggests she bears no ill-will towards her former mate; instead, she still cherishes deep feelings for him. She resides in a large castle.