Satsuki

was a girl who awaited the return of her elder brother, despite the fact that he was proclaimed dead in battle by the father of a fellow village child. She was a thief and a liar but that changed after she met Shippo. She was given a quartz, and made to believe that it was a Sacred Jewel fragment which would ensure his return. Kagome refers Satsuki as Shippo's first love.

Eventually after Shippo rescue her from the Lizard Demon she start to accept the truth that her brother is no longer in this world and move on.

Trivia

 * As the episode name suggest Satsuki is the first girl Shippo has affection to, not counting Soten whon appear in anime-only.
 * Her name shared with Kagome's seyiuu Satsuki Yuiko