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".

Miroku is a buddist monk who sets out to destroy Naraku for the family curse placed on his grandpa by Naraku. This curse is called Kazana (wind tunnel) and is a "Black Hole" in the palm of his right hand. He keeps it covered by a piece and cloth and Japa Mala beads. If he does not defeat Naraku soon he himself will meet the same fate of his grandpa and father and be sucked into it himself. He joins Inu Yasha's group and becomes a part of the main reason for going after Naraku.