Kagome is an ordinary modern schoolgirl living an ordinary life. Who would have thought the dried-up old well on the site of her family's shrine would be a gateway to Japan's ancient past? Drawn through the gate against her will, Kagome finds herself battling demons for control of what she thought was a worthless trinket but is actually a powerful magical gem, the Shikon Jewel! Together with an unlikely ally, the half demon Inuyasha, Kagome begins a quest to recover the shards of the Shikon Jewel and learn more about her link to the past. The search for the final shard of the Shikon Jewel leads Inuyasha and the gang to a mountain fortress...but only the dead may enter. Meanwhile, Naraku teams up with a demon who hunts the blood of innocent villagers—just his type! Then Kagome faces a moral dilemma. Only she can rescue her rival Kikyo from Naraku’s miasma. Will she make the right choice? Elsewhere, Naraku sends Kohaku on an evil errand... Now a fierce battle rages in the borderland between the world of the living and the afterlife. A mysterious force attacks Inuyasha and claims to act on behalf of the Shikon Jewel itself! Naturally, Naraku joins the fray. Then, when all hope seems lost, Inuyasha receives unexpected help from his half brother!