YOU SAID:

Hello, i am stefan, who are you?

INTO JAPANESE

こんにちは、ステファンです。あなたは誰ですか？

BACK INTO ENGLISH

Hello, this is Stefan. Who are you?

INTO JAPANESE

こんにちは、ステファンです。あなたは誰？

BACK INTO ENGLISH

Hello, this is Stefan. Who are you?