YOU SAID:

yo, bro why are you so serious?

INTO JAPANESE

よ、仲間なぜあなたはそんなに深刻なのですか？

BACK INTO ENGLISH

Yo, why are you so serious?

INTO JAPANESE

よ、どうしてそんなに本気なの？

BACK INTO ENGLISH

Oh, why are you so serious?

INTO JAPANESE

ああ、どうしてそんなに本気なの？

BACK INTO ENGLISH

Oh, why are you so serious?