Fortune smiles on Inuyasha and his allies when they finally defeat their nemesis Naraku, who has caused them unrelenting hardships. Overjoyed by the long-awaited victory, they all hurry to resume their former lives, unaware that danger still lurks around. Kanna and Kagura, two of Naraku’s subordinates, make arrangements to set free a sealed demonic entity that claims to be Kaguya, the legendary Princess of the Heavens.
Although preoccupied with their own endeavors, Inuyasha’s group members reunite by a string of unusual coincidences involving Kanna and Kagura along with an inexplicable phenomenon of repeated full-moon nights. Upon realizing that Kaguya is behind the troubling events and that she holds a terrible power, they join forces once more to stop the disastrous fate she has planned for the world.
- Other Title: InuYasha Movie 2: Kagami no Naka no Mugenjo, Inu Yasha: Kagami no Naka no Mugenjo, 犬夜叉 鏡の中の夢幻城, InuYasha the Movie 2: The Castle Beyond the Looking Glass, InuYasha Film 3: The Castle Beyond the Looking Glass, Inuyasha Película 2: El Castillo de Sueños en el Interior del Espejo, InuYasha Film 2: Le Château des Illusions, IY KnNnM, IY Movie 2, InuYasha: Dream Castle Inside the Mirror
- Status: Completed
- Sub/Dub: Anime Sub
- Anime Type: Movie
- Genres: Adventure, Demons, Drama, Historical, Romance, Shounen, Supernatural, Action, Comedy, Fantasy, Mythology, Time Travel, Magic, Animation
- Characters: Inuyasha, Kaguya, Miroku, Sango, Higurashi, Kagome
- Score: 7.67
- Rank: 1224
- Popularity: 1885