Thousands of years in the future, a city known as “Eden 3” is inhabited solely by robots whose former masters vanished a long time ago. On a routine assignment, two farming robots accidentally awaken a human baby girl from stasis questioning all they were taught to believe — that humans were nothing more than a forbidden ancient myth. Together, the two robots secretly raise the child in a safe haven outside Eden.

War of the Holy Grail – Pursuing the power of the “Holy Grail” which grants a miracle, this is a contest in which seven magi summon seven Heroic Spirits to compete for it. In that battle whose conclusion was postponed three times, now, the fourth war commenced again. Entrusting their dearest wish of victory, the magi joined the battleground called “Fuyuki”, but amongst them, there was a man who was always alone, and could not find out the meaning behind his fights. His name was Kotomine Kirei. Not comprehending the guidance of fate, Kirei was lost, and had kept questioning. Why someone like his was given the Command Seals. However, the fate of his fights crossed Kirei’s path with a nemesis by chance. That person is – Emiya Kiritsugu. A man who was sterner than anyone else, more merciless than anyone else, and who sought the miracle of the Holy Grail.

Rai wakes up from 820-years long sleep and starts his new life as a student in a high school founded by his loyal servant, Frankenstein. But his peaceful days with other human students are soon interrupted by mysterious attackers known as the “Unions”.

The upcoming installment’s story takes place amidst signs of postwar reconstruction in the winter of 2028. Tensions are rising in New Port City as demonstrations are held concerning the interests of foreign cartels. This leads to a shooting incident involving riot police. It all started with a cyberbrain infection released by the terrorist “Fire Starter.” An independent offensive unit led by Makoto Kusanagi entrusts the suppression of the situation to their ghosts and aims for their own justice. Below the surface of the incident, lies the “tin girl” Emma and the “scarecrow man” Burinda Junior. As Kusanagi deals with the incident, she draws near to what those two ghosts were seeking.

Posing as lovers on vacation, Motoko and Batou work to try to stop a terrorist organization whose symbol is the Scrasath. Meanwhile, Togusa investigates a murder of a man who possessed a prosthetic leg manufactured by the Mermaid’s Leg corporation.

The story is set in 2027, one year after the end of the fourth non-nuclear war. New Port City is still reeling from the war’s aftermath when it suffers a bombing caused by a self-propelled mine. Then, a military member implicated in arms-dealing bribes is gunned down. During the investigation, Public Security Section’s Daisuke Aramaki encounters Motoko Kusanagi, the cyborg, wizard-level hacker assigned to the military’s 501st Secret Unit. Batou, a man with the “eye that does not sleep,” suspects that Kusanagi is the one behind the bombing. The Niihama Prefectural Police detective Togusa is pursuing his own dual cases of the shooting death and a prostitute’s murder. Motoko herself is being watched by the 501st Secret Unit’s head Kurutsu and cyborg agents.