The Kwaidan Peaks, a "haunted" mountain range situated in the southern hemisphere of the planet Phatrong, were the homeland of the people who initially conceived the Kyuzo war helmet. This helmet was first created to shield those journeying through the mountains from intense monsoon rains, but it was subsequently repurposed as a defensive weapon by the Sulddo clovoc, whose founding legend asserts that their order originated from these very peaks.