Born to a powerful dog demon father and human mother, Inu-Yasha's half-demon heritage defines his existence as an outcast rejected by both worlds. He bears silver-white hair, golden eyes, and sensitive dog ears atop his head, typically clad in a protective fire-rat cloth red robe over a white under-kimono. Initially seeking the Shikon Jewel for full demonic power to overcome prejudice, his quest intertwined with shrine maiden Kikyo. Manipulation by the half-demon Naraku sparked a tragic misunderstanding: believing Inu-Yasha betrayed her, Kikyo sealed him to a Sacred Tree with an arrow for fifty years. Freed decades later by Kagome Higurashi—Kikyo's reincarnation—Inu-Yasha pursues the shattered Jewel shards to prevent Naraku's ascendancy. Volatile, prideful, and quick-tempered, he reacts with frequent outbursts, yet beneath lies fierce loyalty and protectiveness toward comrades, fueled by insecurity over his dual nature. He wields Tetsusaiga, his father's fang-sword, responsive only when protecting humans. The blade evolves through forms like Wind Scar, Backlash Wave, Dragon-Scaled Tetsusaiga, and Meido Zangetsuha—power-ups tied to emotional breakthroughs or dire need. During new moons or severe injury, he reverts to a vulnerable human state. Relationships drive his growth: his bond with Kagome shifts from hostility to deep reliance and love, challenging his prejudices. His rivalry with full-demon brother Sesshomaru evolves from animosity to grudging respect. Companions like monk Miroku, demon-slayer Sango, and fox-demon Shippo teach him teamwork and trust. Confronting Naraku forces him to reckon with past desires, including overcoming a Jewel shard's corruptive influence embedded in his body. Across conflicts against foes like Menomaru, Takemaru, the Grim Comet, and Dragon of the Heavens, he consistently prioritizes protecting others over power. After Naraku's defeat and the Shikon Jewel's disappearance, Inu-Yasha embraces his dual heritage as strength, choosing to remain a half-demon. He commits to Kagome in the Feudal Era, actively safeguarding its peace alongside friends and family.