未来日記 (みらいにっき), lit. Future Diary
A 2006-2010 manga by Esuno Sakae, consisting of one main series, serialized in Kadokawa Shoten's Shounen Ace, Mirai Nikki: Mosaic, and Mirai Nikki: Paradox, the latter of which was serialized in Young Ace, and a 2011 anime produced by asread.