Sara was a filler character first appearing in Episode 133 of the anime. Sara was the princess and daughter of a waning general losing a war. After seeing a wounded Sesshomaru stumble upon an enemy camp, and effortlessly slaughter everyone, Sara fell in love with him.
She would often play her treasured flute whenever Sesshomaru was around, apparently keeping him company while he recuperated. In his sleep, he cursed his half-brother's name, calling out for the Tessaiga that he so desired.