Episode 67

The Howling Wind of Betrayal is 67th episode of the InuYasha anime.

Plot
Sesshōmaru turns down Kagura's offer, being uninterested in the Sacred Jewel. Enraged, she flees further away from the castle. Inuyasha and his friends, with Kōga, follow her. Kōga battles her again, but gets beaten again. Inuyasha intervenes just in time to save him. As the dawn breaks, he prepares to fight Kagura, who flees after seeing him destroy many demons that were sent to help her by Naraku, but not before seeing Inuyasha in his human form, if only for a split second. Kagura return to the castle, where Naraku threatens her to submission. Despite that, she first realize that Naraku is "only" half-demon, then decides to keep secret, as her trump card, the fact that she saw Inuyasha in his human form.

Trivia

 * The scene where Inuyasha is getting more cautious about his secret, his claws were replaced with human fingernails.
 * This is the first time that one of Naraku's incarnations sees Inuyasha in his mortal state.