500 years ago in Feudal Japan, the half-demon Inuyasha is sealed to a tree by mortally wounded priestess Kikyo for stealing the Shikon no Tama to become full demon. Meanwhile in the present, Kagome Higurashi (the reincarnation of Kikyo) is goes back in time 500 years to Feudal Japan through a well on the grounds of her family shrine. In the past, Kagome meets Kaede, the aged priestess and sister of the departed Kikyo. After being attacked by a demon, Kagome frees the sealed Inuyasha to save herself. In the battle the Shikon no Tama emerges from Kagome's body!
Inuyasha attacks Kagome to get the Shikon no Tama. Kaede puts a rosary on Inuyasha which causes him to drop to the ground whenever Kagome utters the word "sit". When trying to get the Shikon noTama back from a demon that steals it, Kagome accidentally shatters into hundreds of pieces that are scattered all over Japan!
After Inuyasha angers her, Kagome decides to return home to the present. At the well, she is attacked by Yura, a demon after the Shikon no Tama. Yura takes her shard and pushes her through the well. Later, Inuyasha chases after her....
Inuyasha brings Kagome back to the past and the two team up to take the Shikon Shard back from Yura.
Inuyasha's older brother (who is a pure-blooded demon), Sesshomaru, crosses paths with Inuyasha in his search for the powerful sword Tetsusaiga that was left behind by their father. Sesshomaru knows that Tetsusaiga is in thier Father's grave. Sesshomaru belives that Inuyasha knows the exact location of thier father's grave.....
Sesshomaru tricks Inuyasha into revealing the location of their father's grave. Once there, Sesshomaru and Inuyasha find themselves unable to remove Tetsusaiga from the stone its wedged in. However, Kagome is able to remove Tetsusaiga from its spot.
Sesshomaru and Inuyasha clash over posession of Tetsusaiga
On their search for Shikon shards, Inuyasha and Kagome come across Amari Nobunaga who is on a search and rescue mission for is beloved Princess Tsuyu.
Kagome and Inuyasha meet the fox demon Shippo whose father was killed by the Shikon shard posessing Thunder Brothers (Hiten and Manten). Inuyasha engages in battle with the brothers over the Shikon Shards and Kagome (whom they kidnapped).
Inuyasha and Hiten engage in a fierce battle, Inuyasha wins. After the battle, Shippo decides to stay with Inuyasha and Kagome.
Upon her return home, Kagome deals with an evil mask with a Shikon Shard in it.
Kagome helps a troubled ghost move on.
On the night of the new moon, Inuyasha becomes human for the night. Unfortunately, it's the night of the new moon and he, Kagome and Shippo are right in the middle of a battle with the Spider Heads!
Kikyo's ashes are stolen from her grave by the demon Urasue. As Kaede, Inuyasha, Kagome, and Shippo go to retrieve them, Kagome realizes that Inuyasha and Kikyo were once in love! Meanwhile, with Kikyo's ashes, Urasue manages to resurrect Kikyo. However, she finds that Kikyo can not move with out her soul, the very soul that is inside Kagome!