Sesshoumaru

殺生丸

Inuyasha's older half-brother. Unlike Inuyasha, Sesshoumaru is a full-blooded dog-demon and looks down on Inuyasha for being a half-demon and associating with humans. He is an extremely powerful demon who appears to have no true match in terms of raw strength; however, when given the opportunity in volume twenty-three, he was unable to defeat Naraku. Although fans call him the Lord of the Western Lands, this title never appears in the manga. Takahashi also stated that Sesshoumaru has no permanent home. Unlike nearly every other demon in the world of Inuyasha, he has no interest in possessing even a single shard of the Shikon Jewel.
Sesshoumaru first appears searching for the sword called Tessaiga, which was created from their father Inu-no-Taisho's fang and has the power to kill a hundred yōkai with one swing; however, Inu-no-Taisho left Tessaiga to Inuyasha, and Sesshoumaru instead inherited the Tenseiga, a sword that cannot harm the living but can bring the dead back to life. Inu-no-Taisho did this hoping that Sesshoumaru would learn compassion. Considering Tenseiga useless to him, Sesshoumaru battles Inuyasha several times for possession of Tessaiga, and when Tessaiga is broken by a bite from Naraku's incarnation Goshinki, Sesshoumaru has Goshinki's fangs forged into the evil blade Tokijin, which only he is powerful enough to control. Initially, Sesshoumaru is ruthless and cruel in his pursuit of Tessaiga and in his dealings with his brother.
Despite his hatred for humans, he seems to care for Rin, a little human girl who was orphaned after her village was destroyed by demons. Rin found Sesshoumaru in the woods near the village where she lived, noticed that he was injured (due to a previous fight with Inuyasha), and tried to help him. Sesshoumaru refused her help, but after finding her body nearly devoured by Koga's wolves later on, he used Tenseiga to bring her back to life. Now Rin follows Sesshoumaru around and considers herself one of his servants.