The Japanese manga and anime series Future Diary (未来日記, Mirai Nikki), written and illustrated by Sakae Esuno, features an extensive cast of characters. The plot depicts the Diary Game, a deadly battle royal 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 his heir.
Future Diary follows Yukiteru "Yuki" Amano, a socially awkward boy and one of the game's competitors who only wants to survive; Yuno Gasai, another player of the game and a friend who would do anything to be with Yuki; Minene Uryū, an infamous terrorist with a grudge against God; and Aru Akise, a genius teen detective and a friend of Yuki who investigates the true purpose of the game and Yuno's dark secrets.
Future Diary Holders are based from the Dii Consentes or Twelve Olympians in Roman and Greek Mythology.[1]