Yap.Town

には関係ないことだ

none of your business

→ に
phrase Rare #40,328
none of your business Literally means that something is unrelated to someone. Often sounds blunt or dismissive, especially when directed at another person; に は marks the person for whom the matter is irrelevant.
JA: 私が何を選ぼうと、あなたには関係ないことだ。
EN: Whatever I choose is none of your business.

とにかく、お前には関係ないことだ。

Anyway, it's none of your business.

それは君には関係ないことだ。

That’s none of your business.

私がネクタイをしようが君には関係ないことだ。

Whether I wear a tie or not is none of your business.

（結絃）石田には関係ないことだよ

(Yuzuru) This has nothing to do with Ishida.

— 映画 聲の形 (2016)