Episode 7 - Showdown! Inuyasha vs Sesshomaru
Sesshomaru is amazed that Kagome was able to remove the sword, so he talks to her for a few moments before attacking and seemingly killing her. Inuyasha begins fighting against his brother, but is shocked when he sees Kagome rising up from the bones that everyone thought was hers. She hands the sword to Inuyasha and Sesshomaru reverts to his true form to finish the battle. In the midst of battle, Inuyasha promises to protect Kagome, and the Tessaiga reacts by growing into a huge fang, which lops off Sesshomaru's left arm. Sesshomaru is left with no choice but to retreat, and Inuyasha, Kagome, and Myoga return to the village to tell Kaede about the sword. It is revealed that the Tessaiga's hidden powers will reveal themselves when it is used to protect humans.
