The Future Diary

Yukiteru Amano is a loner who spends his time writing in his mobile diary and talking to an imaginary friend, Deus Ex Machina. However, one morning, he finds his diary entry for the day has been filled in already. Stranger yet, the events portrayed in the diary start coming true. Deus, who reveals he is an actual God, warns Yukiteru that if he loses his diary, he will die. As Yukiteru starts using the diary to his advantage, he is approached by a stalker named Yuno Gasai who also possesses a Future Diary that foretold his death at the hands of a serial killer, another Future Diary owner. Helping him evade the killer, Yuno helps Yukiteru throw a dart into the killers phone, killing him. Afterwards, Deus explains the rules of the survival game to Yukiteru and the other diary owners, in which they must try to kill each other in order to win the right to succeed him.

Having escaped with their lives from the 9ths death trap at the school Yuki and Yuno find them selves in an alliance with the 4th diary holder Detective Keigo Kurusu. The 4th asks the two of them to spend the day together at an amusement park to act as bait for the 9th who continues to elude the 4th and his detective diary. At the end of the day Yuki uncovers an unsettling secret about Yuno and the 9th may have fallen into a trap set by someone other than the 4th.

Yomotsu appears before the fleeing Yuki, Yuno and Tsubaki with four hypnotised cult members dressed like him. Yomotsu explains that his Righteous Diary led him to infiltrate the Sacred Eye cult and that he intends to blow himself and Tsubaki up using Uryus bomb. Having learned from Keigo that Yomotsu is blind, Yuno manages to find and kill him. Tsubaki then has her followers capture Yuki and Yuno, revealing her plan was to kill them, Keigo and Yomotsu all along. Due to her traumatic past as a ritual rape victim, Tsubaki wishes to attain Deus power in order to remake the world. Yuno manages to kill the guards holding her, cut off Tsubakis hand and hand Yuki her diary before collapsing from exhaustion. Using both diaries, Yuki manages to avoid detection, until Tsubaki tries to lure him out by announcing that her followers will rape and kill Yuno. Realising Yunos devotion to him, Yuki gathers his courage and manages to reach Yuno on time, but Tsubaki gloats that as long as hes in sight of her followers, his actions will be predicted in her diary. Yuki throws a small ball he found earlier up in the air, causing all of Tsubakis followers to look at it and rendering her diary useless. Yuki then throws a dart at Tsubakis diary, and since she is missing a hand, she is unable to deflect the shot. With her diary pierced, Tsubaki vanishes and Yuki and Yuno escape. Meanwhile, Uryu, who was released by Yomotsu, gets captured by Keigo, but he eventually lets her go in return for her contact information.

Reisuke tries several times to kill Yuki and Yuno, but the two of them thwart his attempts, soon realizing he is a diary owner. Yuki starts searching for Reisukes diary in vain, while Yuno insists killing him would be faster. While chasing Reisuke with a hammer, Yuno ends up injuring Yukis mother instead. Yuno figures out that Reisuke has posted his diary to himself in order to hide it and has Yuki intercept the delivery, but he falls prey to a poison gas trap hidden in the envelope. Reisuke challenges Yuno to a hide-and-seek game inside the poison gas filled house, promising the antidote if she manages to capture him. Yuno evades numerous traps set by Reisuke, but eventually finds herself at his mercy. However, Yuki intervenes, injuring Reisuke with a dart and giving Yuno the resolve and opportunity to finish him off. Yuno and Yuki collapse before managing to use the antidote, but Uryu, who has been informed about the situation from Keigo, appears and saves them. Before leaving, Uryu tells Yuki not to trust Yuno.

In a flashback, Hinata receives the Breeder Diary from her dog breeder father, who wants her to eliminate Aru. When Hinata demands Arus diary, he challenges her to guess which hand hes hiding a coin in, with his diary as the forfeit. Despite using Yukis diary, Hinata loses and has to release Yuki. Yuno, however, realizes that Aru is not a Future Diary owner, relying on bluff and observation instead. Unfazed, Aru proposes one more round of his game, with Yukis diary on the line. By intending to tell Yuki that he lost, no matter what the outcome, Aru manages to neutralize Yukis diary, since its predictions are based on Yukis perception. With the game thus reduced to a 50/50 gamble, Aru manages to guess correctly. Mao attempts to destroy Yukis diary, but Yuno injures her. Yuki, Yuno, Aru and Kousaka leave the park, while Hinata uses her diary to send the dog pack after them. Yuki decides to return to Hinata and try to reason with her, but Yuno reaches her first and threatens to kill her, as well as anyone who attempts to come between her and Yuki. To pacify Yuno, Yuki is forced to declare her his girlfriend. Hinatas father communicates with everyone via radio, explaining that he mistook Aru for a diary owner and warning Yuki about Keigo before being killed by him.

In a flashback, Keigo forms an alliance with Uryu, promising to stop pursuing her and asking her to take care of his terminally ill son if he is eliminated from the Survival Game. Yuki and Yuno get arrested and brought to Keigo. In the interrogation room, Keigo forces Yuki to play a rigged game of Russian Roulette with his service revolver. Alerted to Keigos treachery by her diary, Yuno knocks out the detectives guarding her and steals their guns. Just before Yuki gets shot, Yuno breaks into the room, injures Keigo and leaves with Yuki. Panicking, Yuki shoots at one of the policemen pursuing them. Since both Yuki and Yuno have now committed a crime, their actions can be detected by Keigos diary, which was his plan all along. Trapped at the police stations roof, Yuki and Yuno jump off, but a trucks tarp breaks their fall. The next day, Yuki and Yuno are hiding from the police when they notice Keigos wife visiting a hospital. When they follow her, they get ambushed by Uryu, who blows part of the floor up. After Yuki accidentally causes more of the floor to collapse, Uryu allies with Yuki in order to have Yuno pull them both to safety, incurring Keigos wrath in the process. With their deaths foretold in all three diaries, Uryu takes Yuki and Yuno to the room where Keigos son and wife are.

When Deus realises that his assistant, Murmur, manipulated events to hasten Keigos elimination, she claims she wants the game concluded before he has to "retire" and challenges him to a wager on the winner of the survival game, with her picking Yuno and Deus betting on Yuki. Yuki and Yuno go on a stargazing trip, but Yuno alters their destination along the way. Worried about Yukis safety, Aru contacts Nishijima and they manage to narrow Yuki and Yunos location down to a run-down holiday resort, enlisting Hinata, Mao and Kousaka to search for them. As they split up and search the abandoned hotels, Aru and Kousaka face various traps set by Yuno, while Hinata is tricked by a text message Yuno sent from Yukis phone. When the others attempt to find Hinata, they get locked in a room which starts to fill up with gas. At the end of the episode, Yuki is shown bound to a chair, with an ecstatic Yuno sitting between two skulls.

Aru deduces that the Eighths diary is a server hosting and sending predictions to the blogs of her apprentices. When Yukis diary predicts an attack by three of them, Aru has him moved to Kousakas mansion. His plan is to lure the apprentices in, then deactivate the areas cell phone tower, severing their connection to the Eighths server. Once the attack begins, however, Yuno appears and cuts the power to the tower remote control, wanting to defend Yuki by herself. Aru and Kousaka rush to deactivate the tower manually, while Yuki keeps Yuno in restraints. Two of Eighths apprentices, Marco Ikusaba and Ai Mikami, manage to corner Yuki and Yuno by the time Aru deactivates the tower. However, Marco and Ai reveal that they are also the "owner" of a bona fide Future Diary, which has remained unaffected. With no other choice, Yuki releases Yuno, who intimidates the couple into retreating. When the third apprentice sets the mansion on fire, however, Marco and Ai counterattack. Their diaries ability to predict each others actions manages to overwhelm Yuno, resulting in her and Yuki getting injured and their diaries taken away. As Yuki and his friends are brooding in the hospital, they are approached by Uryu.

In a flashback, Marco and Ai are abandoned children who meet in the commercial tower, grow up in Kamados orphanage and eventually fall in love. Yuki chooses to take Yunos hand, while Marco and Ai run to the crumbling towers roof with Yukis father, intending to jump off with parachutes. Yuno catches up to them and once again tries to fight them alone, while Yuki hides and attempts to help her with his diarys predictions. Yuno loses and has her phone taken away, but it turns out to be Marco and Ais decoy, which distracts them with false predictions. As a result, Yuno manages to critically injure Ai. Yukis father grabs one of the two parachutes and escapes the tower, but he runs into Yukis mother, who has been informed of the situation by Nishijima. When she threatens to turn him in, he stabs her. Yuki, Yuno and a dying Ai are trapped in the wreckage, but Marco attempts to free Ai despite having been mortally wounded himself. With Yuki and Yunos help, the debris is cleared out and Marco and Ai die together as the tower collapses. Yuki and Yuno escape using the second parachute, only to find Yukis mother has died. Meanwhile, Nishijima has been unable to find Kamados Future Diary server.

The mayor of the city, John Balks, passes a motion to have Kamados orphanage shut down. He then attends Deus meeting, where Yuki and Yuno, having deduced his identity, expose him as the Eleventh diary holder. Uryu relays these news to Nishijima, who reveals hes been reassigned as Balks bodyguard. Furthermore, hes discovered that Yuno was adopted. Yuno theorises that Balks wants to seize Kamados Future Diary server, so she has Yuki form an alliance with her. Yuki, Yuno, Kamado and her apprentices ambush Balks car on a country road, but he uses a jammer to sever connections to Kamados server. Yuki and Yuno, who anticipated this, betray Kamado and slaughter her defenseless apprentices. Kamado flees in Balks car, while Yuki and Yuno give chase. As Yuki and Yuno corner Balks and Kamado, Uryu appears with Aru. Aru reveals hes retrieved Yunos umbilical cord from her orphanage and that its DNA matches the third corpses, meaning that the real Yuno Gasai is dead and the one Yuki has known all along is actually an imposter.

Yuki and Yuno wreak havoc, demanding that Balks release their friends and commit suicide. Balks locks himself in a vault belonging to Yunos parents bank, which can only be unlocked by himself, Yunos parents, and the real Yuno. Uryu, reasoning that Yuki can no longer eliminate Balks for her, starts hunting him. As she does, she tells him how she lost her parents in the Middle East as a child and grew up under the constant threat of death. At the same time, Yuno frees Yukis friends and goes to kill Kamado, but she is stopped by Aru. In a tense showdown between Uryu and Yuki, the former sees her innocent child self in the latter and lets him shoot her. Uryu then destroys her diary voluntarily in order to detonate a bomb triggered by her death, intending to destroy the vault door for Yuki. However, the door withstands the blast. Yuno arrives, sends Yuki away to destroy HOLON, and somehow manages to open the vault door and kill Balks. A few days later, dark vortices appear all over the city. In Deus realm, Murmur is panicking over the world ending sooner than expected, when Kamado appears with Aru, who asks Deus if it is really possible for his successor to return the world to the way it was.

With a small core being all that remains from Deus, Murmur proclaims herself his successor until his death and the end of the world on July 28th. Yuno reminds Yuki about her diarys prediction that they will "become one" on that day. As the days pass, Yuki eventually admits to himself that his friends were probably telling the truth. Since he cant understand why Yuno would lie to him, he decides to get the truth from her by fulfilling her diarys prediction earlier. On July 27th, Yuki and Yuno make love, "becoming one". Afterward, Yuki asks Yuno why she lied about resurrecting people being possible. Yuno says that she just wanted to console him and asks him to kill her. Yuki refuses and instead suggests that they die together. When he mentions Arus message, which claimed that this universe is a second iteration of a world in which Yuno became a goddess and travelled back in time, Yuno attacks him. As he runs away, Yuki is intercepted by Murmur, who shows him visions of the past. Murmur confirms that Yuno has indeed played the survival game once before. In the "first world", where she and Yuki also ended up as the last contestants, both agreed to commit suicide rather than having to kill the other. However, Yuno only pretended to kill herself, thinking she could bring Yuki back as a goddess. When she discovered she could not restore souls, Yuno, wishing to see Yuki again, travelled back in time and killed her other self, taking her place. Distraught at the death of the second Yuno, Yuki breaks out of the vision and confronts Yuno.

An ambulance arrives at Yunos house together with the third Yunos father. Although he is a much more caring man in this world, Yuno has to stab him when he starts getting suspicious of her. Uryu drops off Yuki and the third Yuno at the school and makes a phone call to this worlds Keigo, forewarning him about his sons illness. Yuki evades Yuno and Murmurs attacks, trying to convince Yuno to return to the second world and rule as its goddess. However, Yuno, torn between her feelings for Yuki and the inevitability of the second worlds destruction unless one of them dies, decides to trap him in an illusionary "ideal" world where his parents are alive and she has never existed. Uryu returns and fights Murmur, but she is overwhelmed once Yuno releases the seal on Murmurs powers. With Uryu beaten, Yuno approaches her other self.