Half-demon Inuyasha and his half-brother Sesshoumaru have always resented each other over their father's twin swords: Inuyasha inherited the fang blade Tessaiga, while Sesshoumaru was left with the healing sword Tenseiga. When the demon Naraku exploits a fragment left behind by the mirror demon Kanna to twist that old resentment into open violence, the brothers are pushed into a fight that could cost Inuyasha both Sesshoumaru's grudging respect and his life, with Kagome Higurashi and Miroku looking on. This special adapts a story arc from the manga and was later folded into InuYasha: The Final Act.