The Moon Cave is perhaps one of the most confusing and still intriguing areas in Eastern Nippon. The cave itself is inaccessible to mere mortals, but gaining entrance is not difficult feat for those bearing the ability to see the dark mountain and the Serpent Crystal needed for easy access. A legion of demons and their terrible leader make their home here, having built base-like structures and a terrifyingly regal throne room in which an eight-headed snake resides.