そんなわけで

expression

therefore; for that reason; so

A common conversational conjunction used to introduce a conclusion or result based on what was just said. Often used at the beginning of a sentence.

• 電でん車しゃが遅おくれた。そんなわけで、遅ち刻こくしました。

  The train was delayed. So, I was late.

• 彼かれは急きゅう用ようができた。そんなわけで、今日きょうは来こられないそうだ。

  He had something urgent come up. For that reason, he says he can't come today.