GungHo going to release the next pre-registration gifts of the Seventh Rebirth on December 12, 2016. The Puzzle & Dragons and the Divine Gate gift items will be available from December 12, 2016 until January 16, 2017.
On the following website you can read how to unlock the gift items and use them on your characters: https://7.gungho.jp/member/entry/how-to-receive.html
The new Seventh Rebirth is the latest smartphone game of GungHo which is available for free on iOS and Android. During the pre-reigstration more than 770 000 users pre-registered for this new game!