YOU SAID:
qwertyuiopasdfghjklzxcbnm
INTO JAPANESE
qwertyuiopasdfghjklzxcbnm
BACK INTO ENGLISH
qwertyuiopasdfghjklzxcbnm
INTO JAPANESE
qwertyuiopasdfghjklzxcbnm
BACK INTO ENGLISH
qwertyuiopasdfghjklzxcbnm
You've done this before, haven't you.