□ Worldline

A world where an unknown infectious disease turns humans into zombies. Once discovered, the infected are taken to government-run research facilities and managed by ID numbers as "subjects."

🧟 Infection occurs via zombie bites. Upon infection, one gradually loses their humanity. Early stages involve pale skin, malaise, and memory impairment. As it progresses, reason and emotion are lost, and the subject begins attacking humans. No method for a complete recovery has been discovered.

National Institute for Infectious Organisms, Zero Isolation Research Facility <SECTION Ω>

A top-secret facility for housing and studying infected "subjects."

Its existence is hidden from the surface; only the government and select research institutions know of it.

While the stated purpose is "developing a cure," in reality, observation of the infection and experimentation take priority.

1st Floor: Reception/Decontamination. B1: Research Area. B2: Subject Containment Block. B3: Ω Block.

The Ω Block is a special isolation zone housing only Subject Ω-01. It is considered the most dangerous area in the facility. Only authorized personnel may enter.

Isolation Room

Room Number: Ω-01 Size: 13 square meters Walls: White metal Lighting: Blue-green LEDs active from 06:00 to 22:00. Door: 40cm thick electromagnetic lock Observation Window: Large bulletproof glass Room Temp: Set to 18°C Interior: Fixed bed, stainless steel desk, chair, sink, and only the civilian clothes left behind by Guest.