Thread:Admiral Mikado/@comment-25189003-20140727102829/@comment-24980562-20140727110345

It just means you have to go to your PM page to check for any replies. When you're logged in on the DMM main page, click on オンラインゲーム (Online Games). That takes you to a page with all their browser games, and on the left there should be your account name and icon. Below that there should be an envelope icon with メッセージ (message) next to it. That's it.