君くん側そくの奸かん

noun

treacherous courtier; evil adviser to a ruler

Historical/classical term for a person who gains the trust of a lord or emperor while secretly plotting against him. Often used in discussions of Chinese or Japanese court intrigue.

• 歴れき史し書しょには、君くん側そくの奸かんを除のぞくために兵へいを挙あげたと記しるされている。

  The history book records that troops were raised to remove the treacherous courtiers.