D.Gray-man Official Fan Book - Gray Log

The D.Gray-man Official Fan Book -Gray Log- (Gray's Memory)- (D.Gray-man公式ファンブック灰色ノ記録, D. Gurē - man kōshiki fan bukku haiiro no kiroku) is a series compilation booklet, with informations on more than 80 character of D.Gray-man compiled by Katsura Hoshino.

It was originally scheduled for september 2 2016 but it was postponed for unknown reasons. Later Scheduled for April 4 2017, but changed to March 3 2017. March 1st announced another delay, with the new release date set for August 4th, 2017.

The confirmation of the release was given on july 14 along with the release of chapter 225. The cover illustrated by Katsura Hoshino was revealed as well.

Contents
Summer 2016 issue of Jump SQ Crown provided some samples of the fanbook:

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 * Extra: One-Shot Continue