Story Structure — 4 Plot Phases
An Unapproved Cure
Kosuke's medical AI is denied approval, while Satoshi urges him to use it to help Nozomi. Nozomi refuses unapproved treatment and warns against abandoning human rules; after her death, Kosuke continues developing the system.
Key Events
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Medical AI Denied Approval — Kosuke's medical AI is denied approval because Japan lacks a legal framework to authorize it. Characters: Kosuke Kiryu, Satoshi Nishimura
Location: Approval process
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Satoshi Urges Its Use — Satoshi urges Kosuke to use the AI to seek a drug for Nozomi's advancing cancer. Characters: Kosuke Kiryu, Satoshi Nishimura
Location: Unspecified
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Nozomi Refuses AI Treatment — Nozomi refuses treatment through an unapproved system and warns about disregarding human rules. Characters: Kosuke Kiryu, Nozomi Kiryu
Location: Unspecified
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Nozomi Dies — Nozomi dies after her cancer advances. Characters: Kosuke Kiryu, Nozomi Kiryu
Location: Unspecified
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Kosuke Continues Development — Kosuke makes Nozomi's wish known and continues developing the AI. Characters: Kosuke Kiryu
Location: Unspecified
A System in Every Life
The AI receives approval and becomes widely used in hospitals and daily life. Its broad adoption is followed years later by a catastrophic malfunction that disrupts care and infrastructure.
Key Events
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AI Enters Widespread Use — The AI is approved and widely used for personalized diagnosis and treatment. Characters: Kosuke Kiryu
Location: Hospitals and everyday settings
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System Malfunction Spreads — A catastrophic system malfunction disrupts medical devices, transportation, and infrastructure. Characters: Kosuke Kiryu
Location: Hospitals and connected infrastructure
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Patients Die in the Crisis — The malfunction causes patient deaths as medical devices fail. Characters: Kosuke Kiryu
Location: Hospitals
A Nationwide Pursuit
The crisis kills Prime Minister Eiko Tanaka, and Kosuke is accused and pursued. Police use an experimental investigative AI, but false identifications make its evidence suspect.
Key Events
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Tanaka Dies — Prime Minister Eiko Tanaka is killed after an AI-linked pacemaker malfunctions. Characters: Eiko Tanaka, Kosuke Kiryu
Location: Unspecified
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Kosuke Becomes a Fugitive — Accused of causing the crisis, Kosuke flees as police pursue him. Characters: Kosuke Kiryu, Kyoichi Goda
Location: Unspecified
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Investigative AI Tracks Kosuke — Police use an experimental AI to track Kosuke through connected devices and predict his movements. Characters: Kosuke Kiryu, Kyoichi Goda
Location: Connected-device network
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False Identifications Raise Doubts — The system repeatedly identifies innocent people as Kosuke, leading Goda to question its evidence. Characters: Kosuke Kiryu, Kyoichi Goda
Location: Police investigation
The Route to the Servers
Satoshi helps Kosuke escape but is shot, urging him to save the AI and his daughter before he dies. After apparent death in a crash, Kosuke resurfaces, misleads the investigative system, and reaches the server facility; the account ends before the confrontation there.
Key Events
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Satoshi Is Shot — Police shoot Satoshi during the escape; before dying, he urges Kosuke to save the AI and his daughter. Characters: Kosuke Kiryu, Satoshi Nishimura
Location: Escape route
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Crash and Reconstructed Footage — Kosuke appears to die in a crash, but reconstructed footage suggests the death may have been staged and Satoshi prepared a route. Characters: Kosuke Kiryu, Satoshi Nishimura
Location: Vehicle crash site
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False Sightings Confound Police — Kosuke reappears and compromises the investigative AI, which issues false sightings across the country. Characters: Kosuke Kiryu, Kyoichi Goda
Location: Across the country
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Kosuke Reaches the Facility — Using a concealed route and company-supplied equipment, Kosuke reaches the facility and heads toward the server room. Characters: Kosuke Kiryu
Location: Server facility