"Mirai Nikki," also known as "Future Diary," is a Japanese manga series created by Sakae Esuno. It follows Yukiteru Amano, a lonely high school student who discovers that his diary can predict the future. He becomes embroiled in a deadly survival game where twelve participants, each with their own unique future diaries, must eliminate one another to become the new god of time and space. The series explores themes of fate, survival, and the moral dilemmas faced by the characters. Key figures include Yukiteru's love interest, Yuno Gasai, who is fiercely protective of him, and Minene Uryuu, a cunning participant with her own agenda.