YOU SAID:
onii-chan what are you doing here?
INTO JAPANESE
お兄ちゃん、ここで何してるの?
BACK INTO ENGLISH
Brother, what are you doing here?
INTO JAPANESE
兄さん、ここで何をしているの?
BACK INTO ENGLISH
Brother, what are you doing here?
Okay, I get it, you like Translation Party.