The Future Diary

Shocked at Deus' answer, Aru attempts to tell Yuki, but Deus stops him. Deus reveals that Aru is an entity created by him to observe and record information on the survival game and starts disassembling him, promising to spare him if he proves he has done anything out of his own free will. Aru succeeds when he reveals he had Kamado make his diary into an apprentice diary, wishing to change the future and save Yuki. As Yuki and Yuno arrive at Aru's apartment to kill Kamado, they're held off by Aru. Yuno starts fighting Aru, while Yuki chases after Kamado and his friends. When he runs into Hinata, she tells him what Aru learned from Deus: even the divine power bestowed to the winner of the survival game cannot bring the souls of the dead back. Meanwhile, Yuno, who has been cornered by Akise, stabs herself and calls Yuki, tricking him into thinking everyone is deceiving him. Yuki kills Hinata, Mao and Kousaka, believing he can bring them back to life later. Aru reaches Yuki and warns him that Yuno plans to kill him. Yuno catches up to Aru and they fight again. Although Aru breaks Yuno's diary, she doesn't vanish; she produces a second cell phone from her pocket, claiming the first one was a fake, and slashes at Aru's throat. As Yuno kills Kamado, a dying Aru, who knows the diary he destroyed was real, suddenly has an epiphany about Yuno. Since he can no longer talk, he writes a message in his phone and shows it to Yuki, allowing Yuno to finish him off as Deus collapses.

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 diary's 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 can't understand why Yuno would lie to him, he decides to get the truth from her by fulfilling her diary's 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 Aru's 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.

In a flashback, Marco and Ai are abandoned children who meet in the commercial tower, grow up in Kamado's orphanage and eventually fall in love. Yuki chooses to take Yuno's hand, while Marco and Ai run to the crumbling tower's roof with Yuki's 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 diary's predictions. Yuno loses and has her phone taken away, but it turns out to be Marco and Ai's decoy, which distracts them with false predictions. As a result, Yuno manages to critically injure Ai. Yuki's father grabs one of the two parachutes and escapes the tower, but he runs into Yuki's 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 Yuno's 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 Yuki's mother has died. Meanwhile, Nishijima has been unable to find Kamado's Future Diary server.