別わかれさせ屋や

noun

professional relationship ender; breakup agent

A person or agency hired to break up a romantic relationship, often by seducing one partner. The term is associated with the Japanese detective/private-eye industry and is not a neutral job title.

• 彼かれは別わかれさせ屋やに依い頼らいして、妻つまの不ふ倫りん相あい手てと別わかれさせようとした。

  He hired a breakup agent to try to separate his wife from her lover.