X-Legend Entertainment Japan announced the official service start of the Japanese version SEVENTH DARK. After the beta test of the game you can enjoy the full service from August 25, 2016 tomorrow!

Just before the starts, between the open beta test there will be a maintenance at August 25 between 11:00 and 15:00. If you can’t wait until that you still have time to play with the beta version.
The details of the start and the maintenance can be found in here: https://sd.x-legend.co.jp/notice/detail.php?news_id=3865&mode=2&news_type=1