Sesshomaru is the yōkai son of the powerful Inu no Taishou and InuYasha's half-brother. Sesshomaru believes that struggle is the only way to survive, and throughout most of the series, he shows his contempt for InuYasha. Although Sesshomaru inherited his father's Tenseiga, which can bring a hundred people back to life with a single swing, he originally coveted InuYasha's inheritance, a powerful sword. However, a spell was cast on the sword so that a full yōkai cannot touch it without burning his flesh. Despite knowing that he cannot touch the sword, Sesshomaru still desires to take it from InuYasha. Throughout the series, Sesshomaru's compassion gradually grows as his rivalry with InuYasha decreases.