YOU SAID:
levi is my best and only friend
INTO JAPANESE
レヴィは私の親友で唯一の友達です
BACK INTO ENGLISH
Levi is my best friend and only friend
INTO JAPANESE
レヴィは私の親友であり、唯一の友人です
BACK INTO ENGLISH
Levi is my best friend and only friend
You should move to Japan!