InuYasha the Movie 2: The Castle Beyond the Looking Glass

InuYasha the Movie 2: The Castle Beyond the Looking Glass picks up shortly after Naraku's supposed defeat, with the demon shards scattered and the group's quest seemingly complete. But a new threat emerges: Kaguya, the legendary Moon Princess from the story of the Bamboo Cutter, who seeks to freeze time in an eternal moment of perfection. Kaguya requires the reflection of Naraku's true form from a magical mirror to complete her plan, and when Naraku proves to be very much alive and pursuing his own agenda involving Kaguya's power, InuYasha and his companions find themselves caught between two ancient, immensely powerful beings.

The Castle Beyond the Looking Glass is considered the high point of the InuYasha theatrical series by many fans. The Kaguya storyline draws on one of Japan's most famous classical tales, giving the film cultural depth beyond a typical anime antagonist. Kagome's role is central to the resolution in a meaningful way, and the film delivers the most spectacular animation in the series. The tension created by Naraku's continued survival — countering the end-of-Naraku premise — also surprised viewers expecting a clean resolution. Non-canonical but highly recommended for InuYasha fans, particularly those who enjoyed the romance and spiritual dimensions of the main series.