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Future Diary is a Japanese manga series written and illustrated by Sakae Esuno. It was serialized in Kadokawa Shoten's Shōnen Ace between January 2006 and December 2010, and has been collected into 12 tankōbon volumes. The plot depicts the Diary Game, a deadly battle royale between 12 different individuals who are given "Future Diaries", special diaries that can predict the future, by Deus Ex Machina, the God of Time and Space, with the last survivor becoming heir to the universe. imdb.com