“Your one hundred-year journey starts here.”

One of the causes of the war between AI and humans that will happen one hundred years later, is the death of a politician named Aikawa. The anti-AI terrorist group “Toak” tries to assault Assemblyman Aikawa, but Vivi and Matsumoto take action to prevent this tragedy from happening. However, Vivy has no way of retaliating against the relentless attack of the terrorists since she was created to be a singer, and they find themselves backed into a corner…

“I’m bringing this child safely back to earth no matter what.”

Estella, an AI that works at space hotel Sunrise, is suspected of attempting to make the hotel crash into Earth. However, as Vivy interacts with Estella and gets to know her better, she begins to see a difference between the information given to her by Matsumoto about Estella. Meanwhile, someone takes control over the Sunrise hotel much quicker than what Matsumoto predicted. Amidst the confusion, Vivy investigates the cause of the situation in order to save the passengers and Momoka’s younger sister, Yuzuka.

“I humbly accept. I look forward to a long-lasting relationship.”

Using a termination program given to them by Dr. Saeki, Vivy and Matsumoto use it to shut down the activity of Metal Float. However, this causes the AI that governs the island to go completely out of control, and it engages in battle with Toak when they try to attack the island. With “AIs attacking humans” now a fait accompli, Vivy rescues the members of Toak, and heads to the center of the island to prevent further havoc by the AI.

“I’ll perform perfectly as usual. To bring happiness to everyone with my singing.”

Diva’s daily performances on the main stage are sold out, and she has cemented her position as the indisputable AI songstress of NiaLand. She is invited to perform at the Zodiac Signs Festival, which will feature AI singers from around the world, but is pulled into a precarious situation during the rehearsal. At that moment, a cube-shaped AI that she has never seen before appears in front of her and…

“…What was she doing at the end?”

After awakening from her long slumber in the museum, Vivy witnesses a horrific scene where humans are being massacred by AI. The war between humans and AI has broken out, and amidst the confusion, Vivy meets up with Matsumoto. They recognize that the Singularity Project has been a failure, so they search for Dr. Matsumoto, who was the architect behind the one hundred-year journey, in order to resolve the situation.

“…What does the heart mean to you?”

“Our aim is to annihilate all of humanity.”

Based on the calculations of the Archive, the integrated AI database, humanity is now on the brink of extinction. As the countdown to human extinction begins, Vivy and Matsumoto decide to join forces with their archenemy, Toak, in order to plan a strategy to break into Arayashiki, the core of the Archive. However, Matsumoto notices a possible solution which he presents to Vivy, after she is contacted by the Archive.