This article is about a/an evil lair in Uchuu Keiji Sharivan.

Genmu Castle (幻夢城 Genmu Shiro?) is the headquarters of the Space Crime Syndicate Madou, which lies within the Genmu World (幻夢界 Genmukai?, Phantom Vision World) dimension, a "white hole" where all the matter sucked up by black holes ends up.

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