Published: Friday 07 October, 2016
- In March 2006 for the first time in the Kadokawa Shoten issued "monthly juvenile Ace" serial, has been completed, a total of 59 sets. The book will be available from July 23, 2006 to April 26, 2011 to complete the full set number of the collection, a total of 12 volumes. The author also released two story supporting role as the main axis of the rumor, respectively, November 26, 2008 release of Mosaic and March 26, 2010 release of Paradox.
- This animation for the subsequent, in December 9, 2010 sale of Volume 11 limited edition booklet comes with the first short animation OAD. The official version of the animation was in October 9, 2011 began to play, all by the animation company asread responsible for the production. All 26 words in the end of April 2012. Animation TV's ending is slightly different, when the snow-hui in the 2 weeks of loneliness to be 10,000 years later, his future diary shows is coming, so the end of the play only lead the story reverie.
- December 22, 2012, the official announcement of the new "diary REDIAL", not included in the earlier version of the comic version of the real ending to reproduce, interpretation of the original author to write a new story, in late July 2013 on sale. In addition, the official cooperation with Fuji TV, the adaptation for the TV series, in April 21, 2012 broadcast. In addition, the make for the game, novels, derivative books and image songs have a variety of development.