YOU SAID:
Hello, I am a guy who you do not know of!
INTO JAPANESE
こんにちは、私はあなたが知らない人です!
BACK INTO ENGLISH
Hello, I am the one you do not know!
INTO JAPANESE
こんにちは、私はあなたが知らない人です!
BACK INTO ENGLISH
Hello, I am the one you do not know!
You've done this before, haven't you.