(decode-coding-string
(encode-coding-string "僟儞僕儑儞柤丒媨揳" 'gbk) 'sjis)
;; => #("ダンジョン名・宮殿" 0 9 (charset japanese-jisx0208))
(decode-coding-string
(encode-coding-string "僟儞僕儑儞柤丒媨揳" 'gbk) 'sjis)
;; => #("ダンジョン名・宮殿" 0 9 (charset japanese-jisx0208))