WARNING: This chapter is extremely violent and disturbing. First two "entries" are fairly safe, so if you want to read those and skip the rest, go ahead. The Unit was a real place and all the things mentioned in here are real things that they actually did, except on people who couldn't grow their parts back, and in fact these are some of the less disturbing things they did. Dr Itou actually existed and, sadly, got away with everything - here's hoping he came back in his next life as something unpleasant. IIRC most of the victims were actually Chinese, but there were some prisoners of war from other Allied countries, some Koreans, and I think some Japanese defectors. I tried to handle it in a respectful manner and not get too gross, but you will still be disgusted. I don't recommend Googling if you plan to sleep soon, though everyone should by rights know enough that nobody ever tries to pull the same stunt again. I really hope writing it in the style of the SCP Foundation doesn't qualify as disrespectful, but since their real files aren't available for comparison this is the best I can do, and it works for the creepy theme. Also, a little fucking about with nation biology; yes, I did just turn the hair-curls into a serious thing, and it's my headcanon that they have no fingerprints or gametes. No DNA either, but DNA wasn't discovered until after WW2.
Extracts from notes in top secret files of Unit 731: Project Halfmoon.
7 May 1944
Subject appears to be human male of Korean descent in mid-adolescence, described by all viewers as unusually attractive, charismatic, or "cute". Distinguishing features include many scars of various types (cuts, burns, bites, etc) and one abnormally thick hair forming a protruding curl which cannot be flattened with pressure. Apparent inherent optical illusion causes impression of small stylised face within loop of curl; all viewers report seeing same illusion, visible from both left and right side-view. "Face" appears to be frowning. Subject arrived at unit after two days travel in shipping crate; apparently suffering no physical ill-effects beyond chapped lips. Subject slightly underweight but not dangerously so. See attached file for stats, photos, account of capture, etc.
Subject able to understand and speak Japanese, but appears confused and uncooperative. Gives name as Im Yong-Soo, claims to be Korean citizen, age fifteen. Demands to know location of "brothers", requests water and permission to go "home", refuses to answer any other questions. Subject is told it may go home when tests are completed, appears relieved and agrees to cooperate with tests.
Subject's pulse, blood pressure, breathing rate, reflexes, and core temperature apparently same as those of normal human. Hair, fingernail, urine, blood, and mouth swab samples show no abnormalities. Hand and foot prints show an apparent lack of friction ridges.
8 May
Subject questioned. Eyes appeared yellow instead of usual brown, antenna twisted into upside-down position. Subject refusedto answer questions or cooperate with tests, responding with aggressive suspicion. Voice higher-pitched than normal, soundslike that of a child.
When re-contained, subject fell asleep for approximately one hour; upon waking, eyes brown and antenna returned to normal position. Seems disoriented, displays amnesia. Talks in unidentified language; no success in translation so far. Subject appears to be holding one-sided conversation with unseen companion. Removed from containment and questioned again, once again uncooperative, answering questions about its nature with "I don't think I can say" or "I don't know how it works". Subject persists in giving name and identity used previously, but refuses to identify any relatives or acquaintances, even its aforementioned "brothers".
Vision and hearing tested, proved to be within normal human parameters. IQ slightly above average, though subject's ability to concentrate appears low. Subject apparently able to see 360 degrees via "face" in curl, though vision less clear.
26 May
Subject restrained on operating table. Expresses confusion, is assured that it may "go home" when tests are complete.
Subject distressed by shaving of hair, reaching hysterics when blade touches curl. Curl bleeds profusely when severed, and subject expresses extreme pain. "Face" disappears and curl falls out of shape. Closer examination proves curl to be antenna consisting of keratin sheath over highly-vascularised and obviously sensitive skin.
Left index finger severed to test alleged properties. Some blood loss, skin heals together and tendons reattach rapidly. Subject expresses pain and distress. Similar result with removal of multiple fingers, hand, forearm, eye, and head.
Subject demonstrates unexpected strength; able to snap leather restraints and kick door from hinges. Seven personnel injured in recapture process. Subject shot through head; skull rematerialises rapidly, subject remains unconscious long enough to be restrained again, this time with steel cuffs.
Internal examination reveals no abnormalities in organ formation. Gastrointestinal contents, tissue samples, and lacrimal fluids show no obvious abnormalities.
Potential for future investigation enormous; subject highly valuable and dangerous, must be handled with extreme care.
3 Jun
Subject proved capable of remaining conscious for several minutes after removal of heart, lungs, liver, or gastrointestinal tract, or near-total exsanguination. Heals near-instantaneously if organ replaced. Removed organs disintegrate after subject's "death" and re-form within subject's body. Internal observation shows vital functions apparently normal.
Antenna fully regrown, "face" now shows expression of sadness. Antenna responds to heat, cold [DATA CORRUPTED] composition normal except subject apparently entirely sterile, cause unknown.
~Pity. I was hoping to see if we could make more of these things. Oh well, this one should last for a while. -Dr Itou
Subject is to be gagged during future experiments; distress vocalisations and attempts to engage personnel in conversation are becoming distracting. Personnel are reminded not to form emotional attachment to subject despite its charisma and the abnormally prolonged period of close interaction, or to respond to its efforts to communicate. Subject is not a human being, it is a valuable research tool, and is highly dangerous.
9 Jun
Subject's hands severed and replaced on opposite wrists. Attach as normal, bones reconfigure over the course of two hours to form correct hand orientation. Persona B in control, expresses severe discomfort throughout.
Error in containment permits subject to attempt escape again. More aggressive than previous attempts; two personnel killed and twelve injured during recapture.
Persona A and B both still refuse to discuss subject's origins or abilities even under extreme duress. Options at this point somewhat limited.
23 Jun
Subject capable of withstanding temperatures approximately 20 degrees below freezing with no major ill-effects. Lower temperatures result in symptoms of frostbite and eventual loss of vital signs. Necrotic tissue sloughs off and regenerates upon warming.
Subject placed in heat chamber and temperature [DATA CORRUPTED].
~How the hell does it regenerate from dehydration? The room's not even humid, where's all the water coming from? -Dr Itou.
1 Jul
Doctor Ajibana found in subject's containment unit, attempting [DATA CORRUPTED] massive blood loss and several ruptured organs, died en route to surgery. Subject shrieked invective in Korean, Japanese, and unidentified language for over an hour before collapsing from exhaustion; notably, Persona B in control during this, consistent with B's tendency to behave in far more belligerent manner than A. Unnecessary physical contact with subject forbidden for reasons of safety of personnel and prevention of experimental error. Subject now restrained with steel cuffs around the clock.
4 Jul
Both Persona A and B refuse all food and water. Force-feeding considered but deemed unnecessary; subject now under observation to observe any effects of starvation.
10 Jul
Slight error in experimental design. Subject rematerialised, restraints did not. Three personnel killed and seventeen injured during recapture. All future tests involving explosives and incendiaries and/or taking place outdoors cancelled for retooling.
27 Jul
Severed antenna no longer regrowing. When conscious, both Persona A and B appear to have succumbed to melancholia; possible connection. Personnel are reminded not to relax any safety measures; subject is still capable of resistance.
~Keep it restrained and don't touch it unless you have to. Remember there's not much we can do to punish it effectively if it does make trouble, so it has nothing to lose. I know it seems dimwitted, but it's smart enough to know that. -Dr Itou.