YOU SAID:
if only pewdiepie were number one
INTO JAPANESE
pewdiepieだけがナンバーワンだったら
BACK INTO ENGLISH
If only pewdiepie is number one
INTO JAPANESE
pewdiepieだけがナンバーワンなら
BACK INTO ENGLISH
If only pewdiepie is number one
That didn't even make that much sense in English.