First, you should go to link Click Here
STEP 1 –> Click word ‘Mnet Japan ログイン’ for Log In at the top of page (right).
STEP 2 –> Box will appear and click blue words ‘無料会員登録’ for Sign Up.
STEP 3 –> Fill your Email Address ‘メールアドレス’ and then click ‘Blue Icon’. It’ll be better to use your Gmail Account.
STEP 4 –> Confirmation about your Email Address will appear. So, go to your Gmail Account and check your INBOX..
STEP 5 —> Go to your URL Link ‘Sign Up’ in your message from ‘MNET’.
STEP 6 –> Fill your Form. Check the picture.
STEP 7 –> Confirmation about your Japan Account will appear. Click Blue Icon.
STEP 8 –> Click Blue Icon ‘mnet.com へログイン’ to LOG IN
STEP 9 –> You can Log In your Japan Account MCD.
STEP 10 —> You already have Japan MCD Account. Click Image M!COUNTDOWN to go to the Link.
STEP 11 –> Click word ‘投票する’ to start vote. Choose BTS Skool Luv Affair-Just One Day,kekeke.. Then click blue Icon.
STEP 12 (Last Step) —> Finish! Click ‘ログアウト’ to Log Out. So don’t forget to create Japan MCD Account.
Credits :
@BTS Diary