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