因果 いんが応報 おうほう
ingaōhō

Noun

1. retribution; retributive justice; karma; just deserts; poetic justice; reward and punishment for one's past behavior

Yojijukugo
きたな 会社 かいしゃ ったものの、腹心 ふくしんだと おもっていた部下 ぶか裏切 られ、因果 いんが応報 おうほうだね。
kitanai tede kaishao nottottamonono fukushindato omotte ita bukani uragirare ingaōhōdane.
When the trusted confidant of the person who conducted a hostile takeover of the company betrayed him, it was a sort of retributive justice.