Kikyou

Though she acts cold towards Inuyasha and in numerous times implies that they were through, she still has feelings for him, and at the begining of the series displays jealousy towards her reincarnation, Kagome. Though, instead of acting on her feelings and jealousy, she distances herself from Inuyasha and his group and continues to pursue Naraku alone. And during her journey, she gradually casts away her bitterness and returns to her older compassionate self. She ends up saving Kohaku and Miroku's lives, and in the end dies peacefully in arms of InuYasha after being attacked by Naraku.