Japanese schoolgirl Kagome is pulled into a well by a centipede monster and through a 500-year old time tunnel to Japan's civil-war era. She escapes from the well with Inu Yasha, a half-dog demon imprisoned in the well 50 years earlier by the priestess Kikyo. Believed to be the reincarnation of Kikyo, she must reluctantly team up with her predecessor's enemy to hunt down the many shards of the "Jewel of Four Souls".