The balance adjustment was said to be done at the end of June, so I thought it would be slower, but it seems that the balance adjustment will be implemented during tomorrow's maintenance. Today's official Twitter tweet revealed all 6 characters for balance adjustment. I was looking forward to seeing how strong it will be because some characters were considerably strengthened in the last 10rd balance adjustment.
Server maintenance is performed as follows.
Maintenance date and time
2019/06/19 11:00(JST) から2019/06/19 15:00(JST) まで
Update contents
4th character balance adjustment
Main Story 4rd Part Chapter 6 (NORMAL) Added
Update of various event data