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