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