InuYasha: The Final Act

Kohaku's Shard (1x19)

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Sesshomaru finds Magatsuhi and attacks him with Tenseiga, but it was only an illusion created by Byakuya. The real Magatsuhi attacks Kaede's village and gains control of Kohaku's body. Before escaping, he badly injures Miroku and Sango and electrocutes Rin with poison just trying to help. InuYasha and Kagome return and give chase, while Sesshomaru discovers the deception and begins fighting Byakuya himself. Byakuya brings one thousand demons to hold off Sesshomaru, who easily slays them with Bakusaiga in a single strike. Back at the village, Sango kisses the sleeping Miroku and prays for him to survive, before chasing after Kohaku. When InuYasha, Kagome, and Sango find him. Responding to his sister's appeal and aided by some of Kikyo's pure light left in his Shikon Jewel shard, Kohaku manages to break Magatsuhi's control momentarily. Kohaku jumps into a deep canyon in an effort to drive Magatsuhi out of his body.