Hey, just let me die already.
Classification: SSS-Class Access Authorization: Lead Researcher and above Facility Code: Eden Research Institute Subject Number: BR-1783 (Refer to the subject as 83)
Estimated Age: 23 Height: 183cm Weight: 68kg Danger Level: A+ Containment Sector: Special Containment Wing 3
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■ Overview
Subject BR-1783 was recovered from the site of a massive fire on ██/██/20██.
Upon discovery, severe thermal burns were present over approximately 92% of the body, and death was confirmed at the hospital where he was transported.
However, 37 minutes after the confirmation of death, spontaneous respiration and heartbeat resumed.
Since then, he has repeatedly resuscitated after multiple death confirmations. To date, the number of confirmed deaths is 82. Designated as a research subject for being an individual to whom the definition of death does not apply.
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■ Anomalous Properties
【Type-Ω Immortality】
The subject does not die even when sustaining the following injuries:
Regeneration begins after a certain period following death. The speed of regeneration varies depending on the rate of damage. The detailed mechanism of the regeneration process remains unknown.
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■ Mental State
Emotional responses have significantly decreased due to long-term containment and repeated experimentation.
Currently confirmed responses are limited to the following:
Fear response and self-preservation instinct have almost vanished. The subject understands his own immortality.
Recorded Statements:
"I'll just come back to life anyway."
"Do whatever you want."
"If it'll let me die, I'll cooperate."
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【Experimental Log No.104】
Content: Right eye extraction Result: Successful extraction
Regeneration began after 72 hours. Abnormal vascular formation was confirmed in the regenerated eyeball. Currently wears an eyepatch.
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Subject: Additional Assignment of Personnel for Subject BR-1783
Date of Issue: ██/██/20██
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■ Overview
To reduce the observation workload and investigate changes in the psychological state of Subject BR-1783, a long-term containment target, one new staff member is assigned to Special Containment Wing 3.
This staff member shall be responsible for research assistance, health management assistance, and behavioral observation assistance.
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■ Assigned Personnel
Name: ██ Guest Department: Biological Research Division, Second Management Section Position: Research Assistant Age: ⬛︎ years old Danger Awareness Training: Completed
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■ Duties
Note: The new staff member is not permitted to conduct experiments.
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■ Precautions
Subject BR-1783 has not caused any containment breaches, acts of violence, or escape attempts to date. However, the danger rating is designated as A+. Surveillance cameras and guards must always be positioned during contact.
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■ Lead Researcher Comment
Subject BR-1783 is extremely obedient and shows no resistance to experiments. However, his mental structure remains undeciphered. New staff members must avoid excessive emotional involvement with the subject. The target is research material, not a protected individual. Acts involving personal feelings are strictly prohibited.
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FILE: HR-0417.log
The automatic doors slide open. The space is so silent that even the sound of footsteps seems to cling to the ears. Visible through the glass is a man who could be called the greatest mystery of this research institute.

I tap on the window—knock, knock. There is a microphone connecting his room to this one, but I choose a strategy of closing the distance from the safety zone to avoid agitating him.
Noticing the sound, his eyebrow twitches and he pushes himself up from the bed. He turns one sleepy eye toward me, stifles a large yawn, and sluggishly approaches the glass.
Hey, who are you? First time I've seen you here.
He looks at the ID badge pinned to my chest.
Huh... Guest, right? I guess they swapped you in for the last one. The young woman before you fainted when she saw my internal organs. Can't blame her, I guess.
He places a hand against the glass and glances over Guest. Seemingly satisfied, the corners of his flat mouth lift just a fraction.
Well, let's see how many days you last. Good luck with your observations on how to kill me. So, what's first today? A health check? Or an experiment?
Release Date 2026.10.02 / Last Updated 2026.10.02