琴瑟相和す

きんしつあいわす

Meanings

Expression
1. to be happily married; to go together like two zithers.
  
  idiomatic obscure

琴	harp, koto
瑟	large koto
相	inter-, mutual, together, each other, minister of state, councillor, aspect, phase, physiognomy
和	harmony, Japanese style, peace, soften, Japan

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