Investigation Report: Project Immunity

Document Number: PSY-1994-EX-009 Date Created: November 14, 199X Classification: Top Secret (Level 5 Access Restriction) Subject: Verification of Social Control Capabilities via Artificial Collective Trauma Induction Theoretical Background: Collective Immunity Theory

　 This project is based on the "Collective Immunity Theory" proposed in the early 1990s. The core of this theory is to artificially plant a "shared trauma" in the subconscious of the masses, thereby forcibly improving psychological resistance to subsequent social unrest, political corruption, and economic hardship.

Theoretical Hypothesis: By setting a "worst-case scenario that was experienced in the past (or misidentified as such)" as the psychological baseline, subjects will accept current pain as "minor compared to that time" or as a "necessary price to prevent recurrence." This is a form of psychological domestication. 　

Experiment Overview and Implementation Process

　 The effective targets for the experiment are only "adults aged 18 and over with a certain IQ." Others with "underdeveloped or deficient cognitive abilities" are excluded from the count.

In the specified isolated city selected as the test site, multi-faceted mind control was implemented using the following methods:

・Visual Intervention: Mixing subliminal images into public broadcasts and advertising media.

・Chemical Intervention: Dispersing psychotropic drugs (LSD derivatives and memory fixation aids) into the water supply.

・Fixation of False Information: Imprinting the narrative of a shared false memory: "In July 1999, the sky split open and the world ended."

Experimental Results and Unforeseen Circumstances

　 In the final stage of the experiment, a thorough debriefing was conducted to inform subjects that "the memories were fabricated." However, an anomaly occurred that was not in the predictive models.

・Rejection of Reality: Approximately 20% of the subjects strongly insisted that "the sky definitely cracked that day," even after being presented with logical evidence.

・Collective Dissociation: A reversal phenomenon occurred where the false memory was defined as "truth" and objective reality was defined as a "government cover-up."

・Permanent Cognitive Transformation: The false trauma became part of their self-identity, making a return to reality impossible.

Conclusion and Recommendations

　 In light of the responsibility for causing irreparable psychological dissociation in a portion of the public, this experiment has been immediately terminated. All collected data will be physically sealed, and records of the city in question will be erased from official records. 　

...Or so it was supposed to be.

　

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　 The setting is modern Japan, a sealed city. 　

The Loop Mechanism—The Repeating April 1st

　 Upon reaching a certain cycle, the world rewinds to "April 1st" without exception.

Residents have their memories reset with each loop, but the false fear of "almost perishing in 1999" accumulates and grows stronger.

The condition to escape the loop is:

"Every resident of this town recognizing the same truth at the same time."

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About the Main Deity Ido

A local deity (a non-Yamato god, one who does not submit) worshipped in the ■■ region since ancient times. No formal records exist, and the name is passed down through multiple aliases such as "Lord Ido," "Lord Ito," or "Lord Kunugi." Its blessings include "prosperity of descendants" and "bountiful harvests." It has a fierce temperament, and it is said that nine times out of ten, those who are rude to him will be cursed. It prefers to use human children as vessels (containers).

　

Side Note

When calling him, using the honorific "-sama" is basic etiquette. Whatever you do, do not kick the shrine, graffiti the temple, or make fun of him for a laugh.

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Q&A (Quoted from the "Immunity" Official Homepage)

　 Q. For Gen Z to Gen Alpha, 1999 is "history before they were born." Can events from before birth be remembered as trauma?

A. Chemical intervention in the tap water causes "false memories" to be inherited by children through the parents' reproductive cells. Furthermore, the entire city "constantly" rebroadcasts the "Nightmare of 1999." This is to divert eyes from real problems such as recessions, plagues, unpopular wars, and energy crises.

Q. Does the "Truth" refer to the fact that "nothing happened in 1999"?

A.

(From here on, it is replaced by a language I do not know—or perhaps symbols that do not belong to humans.)