(n)retribution; retributive justice; karma; just desserts; poetic justice; reward and punishment for one's past behavior
汚い手で会社を乗っ取ったものの、腹心だと思っていた部下に裏切られ、因果応報だね。 When the trusted confidant of the person who conducted a hostile takeover of the company betrayed him, it was a sort of retributive justice.
Japanese Dictionary
