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