Aliases: Inu no Taisho, Dog General, Phantom Beast, Ruler of the Western Lands and others.
Age: Was 3000 + when he died -- Currently 2500+ but appeares to be in his mid 30s.
Race: Inu Yokai
Powers: It is unknown what sort of powers he possessed but it is known that he could change his appearance to resemble that of a human's. His true form was that of a gigantic dog similar to Sesshōmaru, but lacked a crescent shape moon on his forehead and had a single blue jagged-like stripe on each cheek. He was much larger than both Sesshōmaru's and Sesshōmaru's mother's true yōkai form. Aside from his immense strength, the Inu no Taishō also had an incredible power of foresight. It can be assumed that the Inu no Taishō was capable of creating barriers as he was able to put a barrier on Tessaiga.
As for attacks: I am going to assume that he has claw attacks very similar to both of his sons.
Weapon: Tetsusaiga and Tensaiga forged from his own fang. And Current weilder of the hell blade So-unga.
Tetsuaiga: -- Wind scar
Tensaiga: -- Meido & Raising the dead & Barrier
So-unga: -- Dragon Twister & Raising undead & Opening the gates of hell
History: The Inu no Taishō survives long enough to save his wife Izayoi and their newborn child Inuyasha; still weak from his battle with Ryūkotsusei, he dies defending them from a human foe named Takemaru. The gateway to his tomb is hidden in a black pearl (a mystical gem that creates a path between the mortal and spirit worlds) inside Inuyasha's right eye, which was created by Hōsenki, an oyster demon, on the Inu no Taishō's command. Within the pearl, their father's body is shown as an enormous dog skeleton in a suit of armor: his true form, according to Myōga. The sword Tessaiga, forged from the Inu no Taishō's own fang, rests inside this cavernous skeleton, protected by a barrier that repels any non-human with malice toward humans. Because of this, Inuyasha inherits the sword rather than Sesshōmaru. This also suggests Inuyasha's father was never bigoted toward humans nor was he evil. Sesshōmaru even says that he had a "merciful heart for humankind." It seems that he did have a sense of honor and perhaps wanted both his kind and the human race to live in peace.
He acted as the lord of the western provinces of Japan, gaining many other yōkai allies, but also retaining a fondness for humans. This baffles his first wife, Sesshōmaru's mother, who is merely indifferent towards humans and views them mostly as a source of food.
While the Inu no Taishō did not harm humans, he often faced challenges—or made them—with other powerful demons; his earliest known adversary was Shishinki, who lost half of his face and had part of his Meidō Zangetsuha absorbed by the Tessaiga. However, since it was an incomplete and unstable technique, the Inu no Taishō sealed it within Tenseiga. The second known challenge came from the Panther demon tribe, when Sesshōmaru was a mature demon; however, the war was settled when the Dog General slew the Panther King.
Although the Inu no Taishō loved his family, his relationship with Sesshōmaru was shown to be distant- if not openly hostile- in the third film. Sesshōmaru's hatred for humans at the start of the series is even greater than his mother's, as we never hear her say a word against Inuyasha or Izayoi. Yet, he clearly admires his father, and wishes to emulate his victory over many powerful demons. Sesshōmaru's mother seems to have been unfazed by the Inu no Taishō's relationship with Izayoi - merely noting his odd fascination with humans, and still speaking affectionately of him when Sesshōmaru came calling.
At some point, the Inu no Taishō fell in love with a human princess named Izayoi; while he continued traveling and challenging great demons (occasionally crossing paths with Sesshōmaru, who would ignore his advice) he would always come back to her, and she eventually became pregnant. However, a samurai named Takemaru who served Izayoi's castle was also in love with her. While the Inu no Taishō was away battling a new demon (the dragon Ryūkotsusei) Takemaru discovered that Izayoi's pregnancy was the result of a tryst with a yōkai, and sought to prevent the hanyō child from being born.
Inu no Taishō had finally met his match. Although he managed to seal Ryūkotsusei into a cliff while in his true form, he was unable to deliver a fatal blow, and he suffered lethal wounds. Myōga then brought him the knowledge that Takemaru was after Izayoi and his unborn son. Sesshōmaru sensed his father's imminent demise and demanded he bequeath him his swords Tessaiga and Sō'unga. The Inu no Taishō refused to give them to him, asking if he was willing to kill him for them. Sesshōmaru stated that he wished to match his father's power by gaining one of the swords, so the Inu no Taishō asked him if he had something to protect. Not realizing that his father had always been trying to teach him compassion, Sesshōmaru scoffed, deriding the need to protect something as weakness. It was this belief that truly cemented his hatred for Inuyasha centuries later, as he blamed the Dog General's death on his compassionate need to protect his wife and son. The Inu no Taishō then took his true form and, despite Myōga's pleas, went for Izayoi one last time.
Arriving at the castle, he easily overpowered Takemaru's troops with Tessaiga, though suffering further injuries from arrows. Takemaru then challenged him, stating that he had killed Izayoi so that she would not be defiled by birthing a demon. Enraged and grief-stricken, the Inu no Taishō sliced off Takemaru's left arm and raced into the castle, while Takemaru ordered his troops to burn it down. Locating Izayoi's body and her newborn son, the Dog General resurrected her with Tenseiga as the castle burned around them. He covered them with the Robe of the Fire Rat to protect them from the flames, but as they prepared to flee, Takemaru returned. Knowing his injuries were fatal anyway, Inu no Taishō told Izayoi to flee and live a long life- as well as naming his second son Inuyasha. Throwing aside Tessaiga and Tenseiga, he drew Sō'unga and began battling with Takemaru, as the burning castle collapsed around them. Neither Takemaru nor the Inu no Taishō survived.
The Inu no Taisho's remains, along with Tessaiga, were consigned to the gateway region of the Netherworld - the gateway itself sealed within a black pearl that was hidden in Inuyasha's eye. This was the first of many indications that he reserved the mastery of Tessaiga for his younger son. Myōga had been charged with keeping an eye on Inuyasha and helping him access the inheritance when he was old enough. Also in accordance with his will, Tōtōsai 'delivered' Tenseiga to Sesshōmaru (nailing it to Bokusenō's trunk with a sarcastic note, knowing Sesshōmaru would probably try to kill him). No plan was left for Sō'unga as it was too unstable of a weapon, so it was sealed and thrown into the Bone-Eater's Well. After Sō'unga was finally consigned to Hell by the two brothers, Inu no Taishō's soul briefly appeared before them, expressing his pride. By the end of the series his deepest wishes have been granted: Inuyasha has found a secure and happy life with Kagome and his friends, despite his half-demon heritage. Meanwhile Sesshōmaru has been taught the values of compassion, which balance his constant search for power and create a strong bond with his human ward, Rin.
While the various demons in the Inu no Taishō's service scattered after his death, they remained loyal to his memory and showed deep respect to Sesshōmaru and - less frequently- Inuyasha. When the Panther tribe attacked again, all of the Inu no Taishō's former allies joined to form an army under the command of Sesshōmaru, and once more drove them back.
Personality:
Other: Married to Sesshomaru's mother but Izayoi is his mate.
