YOU SAID:
Hello my name is Dewmi
INTO JAPANESE
こんにちは、私の名前はデューミです
BACK INTO ENGLISH
hello my name is deumi
INTO JAPANESE
こんにちは、私の名前はドゥミです
BACK INTO ENGLISH
hello my name is demi
INTO JAPANESE
こんにちは、私の名前はデミです
BACK INTO ENGLISH
hello my name is demi
That didn't even make that much sense in English.