Sesshōmaru's mother

was an inu daiyōkai and former lover to Tōga, who fathered her son, Sesshōmaru. Able to transform into a massive dog, she spent most of her time in humanoid form. She held the Meidō Stone, which was given to her by her mate, Tōga. He instructed her that should Sesshōmaru ever approach her seeking information about the yōkai sword, Tenseiga, she should use the Meidō stone to test his abilities and not feel fear nor sadness if it put their son's life in danger.

Personality
In demeanor, she seemed similar to Sesshōmaru, albeit with a certain playfulness, and probably influenced his initial attitude toward humans. After she observed Rin and Kohaku following Sesshōmaru, she inquired casually if he was planning to eat them. Observing Sesshōmaru's trial after activating the Meidō Stone, she seemed at best only casually concerned about the possibility of his death, and after he refused the escape route that she offered, she seemed mildly offended, and complained that, unlike his father, he "completely lacks any charm."

However, she did feel concern for her son's well-being, as seen when she brought Rin back to life by using the Meidō Stone after witnessing his reaction to her death, and later when she questioned Jaken on whether or not Sesshōmaru was happy now that Rin was brought back.

Although she was a daiyōkai, she was shown to have a good heart, and chided Sesshōmaru for seeking to perfect the Tenseiga as a weapon of destruction rather than a weapon of healing. She also lectured him about the qualities of the wielder of the Tenseiga, and emphasized the need for compassion, love, and a pure heart. This could mean that she beared no ill-grudge toward her deceased mate; rather, she still nursed deep feelings toward him. She also lived in a large castle in the sky.

Outfit
She wore a purple and white kimono with green and yellow butterfly designs on it, and wore a dark blue outer wrap that had a fur pelt, which wrapped around her chest. At the end of her outer wrap, there also was another fur pelt. In addition, she wore a light blue necklace with an amulet of the Meidō Stone.

Powers & Abilities

 * Dog Form: Like her son and deceased lover, she was able to transform into a huge dog which gave her an incredible increase in strength considering her size. In this form, she could fly.
 * Wisdom: She understood that death was not something that could be easily overcome or controlled by one's whim. By showing him that death was immutable, she helped Sesshōmaru understand the value of life and sacrifice. This was an important lesson for Sesshōmaru who had always little valued the lives of others and, upon obtaining the sword, Tenseiga, assumed that he could conquer death itself. In showing him that life was fragile and that those that he cared for needed to be protected, his mother helped him take the final step in his maturation; a prerequisite for him to become a great demon on his own, and obtain the sword, Bakusaiga.

Weapons

 * Meidō Stone: With the stone, she was able to open and close portals to Hell itself. She was also able to summon creatures from Hell to do her bidding. Furthermore, she's able to snatch souls from Hell to revive someone as seen when she revived Rin.

Her family
She was the first partner of the Great Dog Demon. Not much was known about their relationship beyond the fact that they had Sesshōmaru together before he met Izayoi. It could be indicated that she still did love her former mate deeply and still thought highly of him as she mentioned him quite a few times when Sesshōmaru's group met her and seemed to value the lessons that he had left her to teach to their son.
 * Tōga

She was the demon who gave birth to him and eventually taught him about the value of life. She was shown to be quite the authority figure and was not afraid to scold him if she felt that he acted childish and too full of pride without regard to respecting life itself. Despite her harsh nature toward him, she truly did love her son and wanted what was best for him. This act was shown when she resurrected Rin a second time to make Sesshōmaru happy.
 * Sesshōmaru

Others
While Sesshōmaru was inside the Meidō to rescue Rin's life, Jaken stayed with his master's mother and she started a conversation with Jaken, asking him about Sesshōmaru's relationship with Rin and what she means to him. Though Jaken introduced himself towards her by name Sesshōmaru only referred to Jaken as little demon much to Jaken's disgrace and he always kept telling what his name was but she never reacted to his attempts. Despite her haughty attitude about not calling Jaken by his name she did talk in a calm, polite manner towards Jaken and didn't seem to look down on him since Jaken was a normal or low class yōkai as an imp while she was a daiyōkai. She also seemed to trust Jaken, this was shown during their talk as Sesshōmaru's mother mentioned her true/honest thoughts about Sesshōmaru, his father and her opinions on humans and even her feelings for her son and mate towards Jaken, having no trouble to speak such private thoughts freely to Jaken as they were discussing the matter of Sesshōmaru's return and Rin's life. This is something Sesshōmaru himself would never have himself allowed to do.
 * Jaken

Since Rin was a little girl and a human, Sesshōmaru's mother didn't really like her as a person but she was curious about why Sesshōmaru allowed this girl to travel with him. Despite despising humans in general she resurrected Rin in order to make her son happy. If her son was happy so would her mother be too; this was also why she informed Rin that she should take care of her life from now on and not die again. It was not because she cared about Rin herself but about Sesshōmaru's caring feels and attitude he had towards Rin.
 * Rin

Sesshōmaru's mother was the first mate of Tōga, who also had a second son, Inuyasha, with the human woman Izayoi. However, it was left unmentioned if she knew any further information about Inuyasha.The two also have never seemed to meet, since Inuyasha couldn't identify her scent as Sesshōmaru and her mother crossed the skies above where Inuyash's group was walking. He only stated that the scent of Sesshōmaru and another yōkai was in the air, implying that he had no idea about who Sesshōmaru's mother was thus never met her. She also didn't mention Inuyasha with a single word during her appearance.
 * Inuyasha

Trivia

 * Although Rumiko Takahashi never officially gave Sesshōmaru's mother a name (Jaken referred to her respectfully as "Gobodō-sama" (御母堂様), translated as "Lady Mother" in the English dub), some English-speaking fans had nicknamed her "Inukimi," which, if represented by the characters "犬" & "王", means "dog ruler" or "dog monarch.
 * Her seiyū, Yoshiko Sakakibara, also voiced several characters from Takahashi's previous series. They include Otama, Ogin, and Elle de Rosenbach from ', and Ayako from '.

Media appearances
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Manga

 * Chapter 466
 * Chapter 467
 * Chapter 468
 * Chapter 469
 * Chapter 470
 * Chapter 471

Anime
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 * Episode 9 (FA)