[R +18][Violence And Profanity] Mirai Nikki

Yukiteru "Yuki" Amano is a loner who spends most of his time writing a diary on his cell phone or talking with his imaginary friends Deus Ex Machina, the God of Time and Space; and Murmur, Deus' servant. One day, Deus gives Yuki a special diary, mentioning something about a game. Strangely, Yuki's new diary has entries in it spanning the next 90 days—entries about the future that come unnervingly true. Deus, the not-so-imaginary God of Time and Space, then forces Yuki to participate in a battle royale with eleven other people, each of whom also has a diary that can predict the future in some unique way. The rules of this "Diary Game" are simple: the contestants must try to find and kill all the other contestants before the world ends on Day 90, and only the last one standing can prevent the Apocalypse and become the new God of Time and Space.

Characters:
Amano, Yukiteru (The First)[Main] - The main male protagonist of the series and the First diary user. Also known as Yuki, he is a 14 year old middle schooler who is a rather quiet boy that does not talk much with behavior bordering on un-social. He mostly sees things around him as a bystander and writes it down in his cell phone diary.

Gasai, Yuno (The Second)[Main] - The main female protagonist and the Second diary user. Smart, beautiful, and diligent, to most students she is seen as the model student but in reality, she is secretly obsessed with Yuki and constantly stalks him. Having Yandere-like tendencies, she is so obsessed with Yuki that she is willing to hurt or kill anyone who hurts him and is constantly jealous if anyone other than her is getting close with Yuki to the point she won't hesitate to sacrifice them because to her, the only important thing is that she and Yuki survive the game.

Uryuu, Minene (The Ninth)[Main] - The secondary female protagonist, the Ninth Diary user and the protagonist of the side-story manga, Future Diary: Mosaic. An infamous atheist terrorist, Minene is a young woman who has hatred against organized religion particular God.

Akise, Aru[Main] - The secondary male protagonist and the protagonist of the side-story manga, Future Diary: Paradox. One of Yuki's new friends at his new school, Aru is genius with an amazing investigation skills and wants to be a great detective. He becomes involve in the Diary Game to learn the mysteries surrounding it and protect Yuki. Aru is bisexual, as not only he is interested in Yuki, but shows interest for Minene and Tsubaki as well.

Hiyama, Takao (The Third) -The Third Diary user. Takao is a teacher at Yuki's school who is secretly a serial killer who wears a heavy bulletproof trenchcoat with a hat and mask that hides his identity. Takao's diary is the Murder Diary which gives him details on who his next victims are and where and how he kills them. While the diary helps him catch his victims and prevents them from escaping, it does not tell him what to do if his victims will fight back thus he can be easily defeated.

Kurusu, Keigo (The Fourth) - The Fourth Diary user. Keigo is a police captain who was chosen for the Diary Game to balance out the other Diary users who were much worse. Calm, cool and collected, Keigo has no interest in the game and wants to find a way to stop it before more people get hurt and thus becoming Yuki's ally. His diary is the Criminal Investigation Diary, which gives him details of crimes that will happen within the next 90 days, but it cannot predict the future of an investigation done by someone other than himself.

Kasugano, Tsubaki (The Sixth) - The Sixth Diary user. A frail girl with bad eye-sight, she is the leader of the Omekata cult where she's serves as the group priestess. The scroll she carries is actually her Future diary called the Clairvoyance Diary which allows her to read what her followers see. However, Tsubaki does not trust what her diary tells her because what her followers see may not be accurate and her fear of traitors from within.

Hirasaka, Yomotsu (The Twelfth) - The Twelfth Diary user. Blind and insane, he is a vigilante who acts like a super sentai hero including wearing spandex and a large, round one eye mask. While claiming to be fighting for "Justice", his view of justice is very different as to him, justice is the one who wins. His tape recorder called the Justice Diary, has the ability to tell him what evil deeds that will happen in the future which range from normally criminal like plotting murder to the nonsensical like littering. Furthermore, his diary can hypnotize people by giving them illusions.

Houjou, Reisuke (The Fifth) - The Fifth Diary user. Reisuke is a four year old boy who despite looking seemingly harmless, is very intelligent for his age and has a very diabolical mind. He sometimes speaks in third person with his hand puppets whom he talks with. Reisuke's diary is the Hyper Vision Diary, a coloring book that gives a small summary of the activities that he will perform for the day. However, his diary only shows three entries for the day during the morning, noon, and night. Despite that, it has a certain advantage of giving Reisuke all three entries at the same time, which allows him ample time to carefully plot his next move, as well as some pictures drawn by him, giving him some source material other than writing.

Tsukishima, Karyuudo (The Tenth) - The Tenth Diary user. A rich man with elegant taste, Karyuudo is a dog breeder who loves and cares about his dogs so much that he neglects his family. His diary is the Breeder's Diary, which allows him to control his dogs to attack his enemies using his cell phone by voice command. However, it's the disadvantage is that the more dogs that user control, the greater concentration needed to command all of them which leaves the user vulnerable. He uses his daughter Hinata to attack Aru Akise, believing that he knew that Karyuudo was responsible for the recent savage murders and that Akise was a Diary Holder, though he was mistaken on the latter. He pretends to form a closer kinship with his daughter to agree to this, though he was ultimately revealed to be using her. After his daughter fails to kill Akise Karyuudo reveals his use of her and tells Hinata not to end up like her father before getting shot to death by Keigo, also revealing that Keigo was his murderer to Hinata and her nearby friends, including Yuki and Yuno.

Ikusaba, Marco (The Seventh) - Originally assumed to be two separate Diary users, Marco and Ai are in fact both the Seventh Diary user. When first introduced, Marco and Ai were using apprentice diaries which were assumed by Yuki and his allies as their real Future diaries with Marco's The Unbeatable Brawler Diary predicting attacks before they happened, while Ai's Flirting Diary locates any man she wants to flirt in the future. Their real diaries is the Exchange Diaries which report each other's immediate future. The couple displays excellent teamwork as they use their diaries to cover each other's weaknesses.

Ueshita, Kamado (The Eighth) - The Eighth Diary user. A large, strangely shaped woman, she is in charge of the "Mother's Home" orphanage where Marco, Ai and Orin were raised. Her diary, the Blog Diary, is actually a server that can be accessed by the people she allows in, giving each person their own "Apprentice Diary" that can predict the future in their own various ways. Kamado has no interest in the Diary Game as the only thing she cares about looking after her orphans. Ironically, it is her orphans who want her to win as they love Kamado and will kill anyone who harms her.

Bacchus, John (The Eleventh) - The Eleventh Diary user and final one to be introduced. Balks is the Mayor of Sakurami City and is mastermind behind the Diary Game as he was the one who convince Deus to create the battle royale that will determine Deus' successor. Balks diary is the Watcher Diary ("The Watcher" in the Japanese version) which enables him to read the other diary users entries including the Apprentice Diary users. A believer in Nazi ideology, Balks' main goal is to create a race of superior beings with him as their leader. Despite his ideology, he is a gentleman, befriending Kamado and inviting her to help him in his place to give everyone in Sakurami City the power of the Future Diaries.

Deus Ex Machina - The God of Time and Space and the Diary Game overseer and creator. Yuki always assume that Deus was just his imaginary friend only to learn he is in fact real. Convinced by John Balks, Deus created the Diary Game to find a worthy successor to take over his place as the reason he created the game as his life is coming to an end. He seems to favor on Yuki and most likely wants him as his successor. He also favor on Minene, transferrng his knowledge and half of his power to her and thus, making his death approaching faster than anticipated. He admit that she is the only one he can rely on at that point of time, to stop 1st world Muru Muru. He even tell her that she is correct when Minene asked if Eleventh's diary is the ability to spy on other people's diaries.

Muru Muru - A brown, white haired girl who is Deus' servant. She has a rather playful and nonchalant attitude toward Deus and the other Diary users. Most of the time she serves as the comic relief of the series. She poses as a major antagonist towards the end of both the main series and Future Diary: Paradox, scheming behind Deus for her own personal fun.