InuYasha, 1

Kagome is a high school student whose family runs a Shinto shrine. On her fifteenth birthday, she is suddenly attacked by a terrible demon, who sucks her into a well near the shrine, catapulting her several centuries back in time, to the Sengoku era. In an attempt to escape the creature, the girl seeks refuge in a forest, and there she meets an enchanting half-demon with long white hair held captive by a magical seal. Awakened by Kagome to defend her from the monster that threatens her, Inu-yasha recognizes her as the reincarnation of the priestess Kikyo, guardian of the precious Jewel of the Four Souls...