InuYasha the Movie 2: The Castle Beyond the Looking Glass

Half-demon Inuyasha and schoolgirl Kagome return to their normal lives after seemingly killing their archenemy Naraku, but a new threat emerges in the form of Kaguya, a self-proclaimed princess from the Moon of Legend who plots to plunge the world into an eternal night of the full moon. As Inuyasha and his friends reunite to confront this new menace, they must also navigate their own relationships and past battles, including a dramatic showdown between Kaguya and the true hero, Inuyasha himself.