清風明月 [ㄑㄧㄥ ㄈㄥ ㄇㄧㄥˊ ㄩㄝˋ; qing1 feng1 ming2 yue4]
  lit. cool breeze and bright moon (idiom); unattached and at leisure
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  清風明月
  せいふうめいげつ
  noun (common) (futsuumeishi)
  refreshing breeze and the bright moon
  a beautiful nocturnal scene with a full moon
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