The Forest of Illusion (幻術の森, Genjutsu no mori) was a forest surrounding the Five Lakes of Mount Fuji. Vegetation in this area was very dense and not easily traversed. The forest concealed the entrances to many subterranean caves on the shores of the five lakes. One of these contained the Shrine of the Mirror of Life.


  • The forest is most likely a pseudonym for the real life forest of Aokigahara, a forest which is historically associated with demons in local legends and surrounds the Fuji Five Lakes area in real life.
  • The Forest of Illusion was named after the world from the SNES video game, Super Mario World.


InuYasha the Movie 2: The Castle Beyond the Looking Glass
Locations: Mount Fuji  •  Dream Castle  •  Forest of Illusion (Shrine of the Mirror of Life)
Five Lakes of Mount Fuji: Lake Kawaguchi  •  Lake Motosu  •  Lake Sai  •  Lake Shōji  •  Lake Yamanaka
Princess Kaguya
Allies: Kagura (formerly)  •  Kanna (formerly)  •  Orochi
Enemies: Miyatsu  •  Naraku  •  Inuyasha  •  Kagome Higurashi  •  Miroku  •  Sango  •  Shippō  •  Kirara  •  Akitoki Hōjō  •  Kohaku
Equipment: Celestial Robe  •  Mirror of Life
Five Items: Jeweled Branch of Hōrai  •  Swallow's Cowrie Shell  •  Jewel of the Dragon's Neck  •  Stone Begging Bowl of Buddha  •  Robe of the Fire-Rat