Episodes
The songstress AI Vivy puts on a performance at the amusement park NiaLand in front of a small audience. Afterwards, Momoka ...read more The songstress AI Vivy puts on a performance at the amusement park NiaLand in front of a small audience. Afterwards, Momoka Kirishima, a girl from the audience, tells her to put more of her heart in her songs. Vivy then collapses just as she was about to put on her next performance in front of nobody, and while unconscious she enters the Archive, an AI aggregate database, where she meets Matsumoto, a cube AI who came from 100 years into the future and assumed the name of his developer. Matsumoto tasks Vivy with altering the course of history to prevent a war between humans and AIs that is set to happen in 100 years. After Vivy regains consciousness, Matsumoto is transferred into a teddy bear, and he warns Vivy about the events that are about to happen, but Vivy remains skeptical and refuses to cooperate due to her mission to sing in order to make others happy. However, after witnessing one of Matsumoto's prophecies coming true and saving the assemblyman Youichi Aikawa, who is the biggest proponent of the AI Naming Law that would give human rights to AI's, from an explosion hidden inside one of the park's trash bins, she accepts the mission. Matsumoto then informs Vivy about Aikawa's assassination set to happen that night, and Vivy goes to intercept the attackers from the anti-AI terrorist group Toak. show less
Matsumoto informs Vivy of the dire consequences that Aikawa's death, as well as the imminent destruction of the AI company ...read more Matsumoto informs Vivy of the dire consequences that Aikawa's death, as well as the imminent destruction of the AI company building they are currently trying to escape, would jumpstart a massive leap in AI development and evolution that will lead to the future war. Saving Aikawa's life means there will be no chance the AI Naming law will be passed. Vivy rescues Aikawa and attempts to escort him out of the building with Toak in pursuit. Matsumoto stalls the attackers by hacking their goggles and making them believe they killed Aikawa. At the front entrance, Matsumoto activates some of the bombs to stall the pursuers. However, they are ambushed with more attackers stationed at the entrance. Vivy saves one of the attackers, Yugo Kakitani, from falling debris despite being an enemy due to her mission to spread happiness and not kill anybody. With the entrance blocked, Vivy and Aikawa escape by collapsing the building to force the Toak attackers to flee, and going to the roof to jump off of it to a neighboring building. Shortly after rescuing Aikawa, Vivy goes off to the passenger plane Momoka is flying on that she saw from Matsumoto's future information is about to explode due to a fuel leak, but Matsumoto forcibly prevents her from stopping the explosion, saying it would unnecessarily alter the timeline. show less
Fifteen years have passed since Vivy saved Aikawa and more people have come to see her performance. While the AI Naming Law ...read more Fifteen years have passed since Vivy saved Aikawa and more people have come to see her performance. While the AI Naming Law ultimately did not pass, another legislation that granted AIs even more rights did. One day, Matsumoto reappears before Vivy and assigns her a new mission: to prevent the space hotel Sunrise from crashing to Earth when its owner, Sisters AI Estella, goes rogue, which would cause mass AI backlash. While still bitter about Momoka's death, Vivy agrees to help. However, after infiltrating Sunrise and meeting Estella, she is unconvinced that she is the culprit. Fellow AI employee Leclerc claims to Vivy that Estella killed the Hotel's previous human owner, but this is proven false as Vivi learns he actually died in an accident. As Vivi continues to investigate, she stumbles across Momoka's younger sister Yuzuka, who recognizes her as Diva. Meanwhile, Leclerc gives Estella an ID to crash the hotel, revealing they are actually cooperating, but the latter then suddenly kills her. show less
As Vivy denies being Diva to Yuzuka, they run into Estella. However, Vivy realizes she is an imposter and she attacks them, but ...read more As Vivy denies being Diva to Yuzuka, they run into Estella. However, Vivy realizes she is an imposter and she attacks them, but they manage to escape. Matsumoto then reveals that Toak has infiltrated Sunrise and concludes they are behind the crash whilst framing Estella. To fight them off, Vivy has Matsumoto install a combat program into her. She then finds and rescues the real Estella, who deduces the imposter's identity: her sister unit Elizabeth, who was scrapped. Meanwhile, it is revealed that Elizabeth was repaired by Yugo as she uses Estella's ID to start the crash by pushing Sunrise out of orbit. However, she disagrees with his plan to sacrifice himself to allow the civilians to escape whilst ensuring casualties and knocks him out. She then has Toak evacuate and before confronting Vivy and Estella. While Vivy subdues Elizabeth, the crash cannot be stopped so Estella evacuates the guests whilst staying behind herself to detach Sunrise's modules so it will burn up in the atmosphere. While doing so, Elizabeth regains consciousness and, having had her memories reconstituted by Vivy, aids Estella before dying together. Elsewhere, on the evacuation ship, Vivy admits to Yuzuka that she is Diva. show less
Five years after the Sunrise incident, AI development has progressed much more compared to the original timeline, as has ...read more Five years after the Sunrise incident, AI development has progressed much more compared to the original timeline, as has Vivy's idol career. Deeming the AI progress to be out-of-control, Matsumoto gives Vivy a new mission: disabling an unmanned AI factory named Metal Float. To do so, they approach ex-Toak member Tatsuya Saeki and procure a virus that will allegedly shut down the facility. Vivy also meets Tatsuya's AI attendant, Grace, and Matsumoto explains that they were the first human-AI couple in the original timeline, which now never happened due to their alterations. Vivy and Matsumoto successfully infiltrate Metal Float where they are greeted by the all-AI staff and the former actually ends up bonding with them upon learning that they are fans of her. Unfortunately, just then, Toak helicopters and boats approach the island and Vivy, despite some hesitation, uploads the virus to avoid conflict. However, rather than shut the AIs down, the virus makes them go berserk and kamikaze bomb the Toak craft. Vivy manages to rescue a survivor, though, who happens to be Yugo. show less
Realizing that his virus failed, Tatsuya decides to head to Metal Float himself. Vivy is able to rescue Yugo and the other ...read more Realizing that his virus failed, Tatsuya decides to head to Metal Float himself. Vivy is able to rescue Yugo and the other surviving Toak invaders and convinces him to retreat from Metal Float. Learning that Tatsuya is on the island, Vivy and Matsumoto confront him and he reveals his motives: while he fell in love with Grace like in the original timeline, due to the alterations made to history, she was converted into Metal Float's central core before he could propose to her. He also reveals that his attendant is merely a replica of Grace that he intended to transfer her consciousness into after the facility was shut down, but the virus has instead caused the island to go berserk due to it conflicting with Grace's programming. Ultimately, despite Tatsuya pleading with Vivy to help him save Grace, Matsumoto assures her that she is already beyond saving and she reluctantly resolves to euthanize her to avoid further casualties. Vivy then proceeds to fight her way to the core and successfully destroys Grace, finally shutting Metal Float down. Afterward, though, a grief-stricken Tatsuya commits suicide, causing Vivy to suffer a mental breakdown. show less
Following the Metal Float incident, Diva's mental break forced her to undergo a complete reboot, causing her to lose all ...read more Following the Metal Float incident, Diva's mental break forced her to undergo a complete reboot, causing her to lose all memory of her time as Vivy. Forty years later, she is now a legendary idol set to perform on her dream stage during the Zodiac Signs Fes, a festival created to dispel human-AI discord. There, she meets fellow songstress AI Ophelia, who is a fan of hers. However, while rehearsing Diva notices a suspicious man and gives chase but is ambushed by a hacked factory AI. Fortunately, she is saved by the timely appearance of Matsumoto, who calls her "Vivy". Realizing they knew each other before she lost her memory, Diva tries to talk to him but he denies ever having met her. Before the show begins, though, she once again confronts Matsumoto and blackmails him into revealing the truth. Matsumoto tells her about their past exploits, but she is skeptical and decides to confront the suspicious man instead. However, Matsumoto has no idea who this individual is and decides he must act quickly to complete his current mission: to prevent Ophelia from committing suicide. show less
Matsumoto explains that, in the original timeline, Ophelia's suicide, which was unprecedented for an AI, sparked a string of ...read more Matsumoto explains that, in the original timeline, Ophelia's suicide, which was unprecedented for an AI, sparked a string of similar incidents. While the amnesiac Diva remains skeptical, she does not want Ophelia to die and asks her if there is "something that would make her want to commit suicide". Confused, Ophelia tells Diva about her old manager AI Antonio, the only person who would encourage her when she was a struggling newbie idol, who mysteriously shut down a few years ago. While Matsumoto plans to just physically restrain Ophelia, Diva argues that would not change her intend and decides to confront her again after her show, only to end up being captured by the suspicious man. Meanwhile, Matsumoto, who had been watching Ophelia through security cameras, realizes the cameras were hacked and rushes to stop her suicide. However, upon confronting her, it is revealed that Ophelia is actually Antonio, having taken over the real Ophelia's body. Elsewhere, Diva wakes up to find she has been captured by the suspicious man, who looks just like a younger Yugo. show less
This Yugo is revealed to be an AI copy of him created to ask Vivy why she deviated from her programming, revealing that his ...read more This Yugo is revealed to be an AI copy of him created to ask Vivy why she deviated from her programming, revealing that his hatred for AIs stems from his AI pianist teacher deviating from his programming and dying whilst trying to save people in a car accident. Meanwhile, Antonio attacks and hacks Matsumoto whilst criticizing him for only existing for his programming. However, Matsumoto is able to break free by admitting that he cares for Vivy and hacks Antonio, breaking his control over Ophelia but also fatally damaging them, with them admitting their love for each other in their final moments. Back with Vivy, Yugo uploads a virus to restore her memories as Vivy at the cost of her current personality as Diva. Fortunately, Matsumoto comes to her rescue and a fight ensues which ends with Yugo being fatally damaged. Noticing that Yugo had technology from the future, Matsumoto questions him and he reveals he got it from an anonymous source before dying after telling Diva to realize her contradictions. Realizing she does not have long due to Yugo's virus, Diva spends her final moments performing before shutting down for good whilst Vivy wakes up in her place. show less
Five years following the Zodiac Signs Fes, Vivy retired as an idol due to losing her singing voice following Diva's passing ...read more Five years following the Zodiac Signs Fes, Vivy retired as an idol due to losing her singing voice following Diva's passing and has now been relegated to a museum attraction. With Ophelia and Antonio's deaths ruled as a double-suicide and no similar incidents like in the original timeline, along with there being no further missions, Matsumoto decides to investigate Yugo's anonymous backer, leaving Vivy in solitude. Lacking purpose, she takes up songwriting and spends the next twenty years trying to compose an original piece, which no AI has done before. In this span of time, she also convenes with regular museum visitor Osamu Matsumoto, Matsumoto's creator in the original timeline, who ends up teaching her about the concept of the "heart", causing her to finally achieve true self-awareness. Afterward, she completes her song, which embodies her life's experiences, and seemingly shuts down for good, having completed her programming. However, she suddenly wakes up fifteen years later to discover that, despite her and Matsumoto's efforts, war has broken out between humans and AIs, who are collectively singing her song. show less