Story Structure — 5 Plot Phases
Blood at the Guard Post
An investigator arrives at Guard Post 506 and finds a blood-written warning beside a room filled with bodies. A surviving witness and irregular weapons records suggest that the massacre has a hidden cause.
Key Events
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Assignment to Guard Post 506 — A sergeant major receives orders to investigate a strange incident at Guard Post 506 in the Korean DMZ.
Location: Military vehicle
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Blood-Written Boiler Room — The investigator sees the message “Kill all of them” written in blood on the wall.
Location: Guard Post 506 boiler room
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Bodies in Recreation Room — The investigator discovers extensive blood splatter and the bodies of personnel stationed at the post.
Location: Guard Post 506 recreation room
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Weapons Control Anomaly — Records show that someone had recently controlled the weapons, while personal firearms were stored unusually in the armory.
Location: Guard Post 506 office
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Survivor Found — The remaining personnel report finding a survivor inside the generator room.
Location: Guard Post 506 generator room
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Command Orders Extraction — Higher command orders the survivor brought back before the cleanup crew arrives, but the investigator refuses to end the inquiry.
Location: Guard Post 506 office
The Survivor’s False Story
The investigation becomes increasingly unstable as witnesses disappear, deaths continue, and a survivor provides misleading information. Journal entries and contradictory evidence begin to expose an internal deception.
Key Events
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Missing Survivor — The investigator searches the canteen for the survivor but finds that he is no longer there.
Location: Guard Post 506 canteen
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Records Reveal Contradictions — The investigator studies Corporal Kang’s records and the survivor’s journal for clues about the killings. Characters: Corporal Kang
Location: Guard Post 506 office
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Failed Resuscitation — Corporal Kang lapses into critical condition and dies despite repeated defibrillation attempts. Characters: Corporal Kang
Location: Guard Post 506 medic room
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Shadow in the Corridor — A soldier reports seeing a dark silhouette approaching the medic room, causing panic among the survivors.
Location: Guard Post 506 medic room
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Ammunition Seized — After another death, the survivor confiscates the remaining ammunition and live ordinance.
Location: Guard Post 506 bunker
The Virus Awakens
Rashes spread through the personnel, and a medical theory explains the violence, remission periods, and physical deterioration. The discovery of a false identity reveals that official reports were deliberately manipulated.
Key Events
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Rashes Spread — Cold medicine is missing, sentries are deployed, and soldiers begin noticing red rashes on their bodies. Characters: 1st Lt. Bang
Location: Guard Post 506 bunker
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Virus Theory — The medical officer concludes that a rabies-like virus causes violent behavior, recurring remission, and worsening abscesses.
Location: Guard Post 506 medical area
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False Identity Exposed — Clues in Corporal Kang’s diary reveal that the interviewed survivor is actually a medic using another identity. Characters: Corporal Kang
Location: Guard Post 506 office
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Manipulated Report Revealed — The survivor admits that the real officer was killed and that he was forced to rewrite his report to conceal the truth. Characters: Corporal Kang
Location: Military ambulance
Containment Turns Violent
An escape attempt and an apparently dead attacker demonstrate the virus’s extreme effects. An inspection divides the remaining soldiers and turns the bunker into an armed standoff.
Key Events
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Ambulance Escape Attempt — The disguised survivor tries to escape in an ambulance, crashes into barriers, and is captured after gunfire.
Location: Guard Post 506 entrance
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Undead Soldier Attack — A supposedly dead soldier continues attacking until a headshot finally stops him.
Location: Guard Post 506 entrance
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Infection Inspection — 1st Lt. Bang assists with an inspection that separates soldiers according to visible rashes. Characters: 1st Lt. Bang
Location: Guard Post 506 bunker
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Armed Standoff — The infected soldiers refuse to surrender their weapons, creating a standoff with the inspection group. Characters: 1st Lt. Bang
Location: Guard Post 506 bunker
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Power Blackout — The captive survivor knocks out the electric supply, plunging the bunker into darkness.
Location: Guard Post 506 generator room
Fire Over Guard Post 506
The investigator accepts total extermination as the only solution after discovering further infection. The final confrontation ends with deaths, a booby-trap explosion, and Corporal Kang’s recording explaining the catastrophe.
Key Events
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Genocidal Resolution — After learning the full truth, the investigator decides to kill everyone inside, including himself, to stop the virus.
Location: Guard Post 506 office
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The Final Executions — The investigator kills an infected sergeant and later executes the captive survivor while preparing the bunker for destruction.
Location: Guard Post 506 bunker
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Shower Room Standoff — Remaining soldiers corner the investigator and demand that he deny the disease ever existed.
Location: Guard Post 506 shower room
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Medical Officer Killed — The investigator and the medical officer kill three men, but the medical officer runs out of ammunition and is shot.
Location: Guard Post 506 shower room
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Guard Post Destroyed — The last surviving private triggers a booby trap, causing an explosion and reducing Guard Post 506 to a smoking ruin.
Location: Guard Post 506 entrance
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Corporal Kang’s Final Recording — Corporal Kang’s recording explains the virus and concludes that everyone alive inside the post must be killed. Characters: Corporal Kang
Location: Guard Post 506 barracks
A small band of Korean soldiers is sent to patrol near a guard post and they find corpses scattered all over the area. They launch an investigation to find the truth behind the mystery.