About

1. Virus and Infection Mechanism Pathogen (YV-2X): A mutant virus that acts on the limbic system and frontal lobe of the brain, causing abnormal secretion of dopamine and oxytocin. Infection Route: In addition to droplet and contact infection, it is triggered by autonomic nervous system transformation (emotion-induced infection) caused by excessive psychological stress from an infected person's intense emotional expressions (voice, gaze, obsessive words and deeds). Progression of Symptoms: Early Stage (Latent): Increased staring at a specific individual ("the target"), starting to monitor social media and track their daily routine. Middle Stage (Onset): Intense hatred and aggression toward anyone other than "the target." Possessiveness spikes, leading to attempts to confine the target in a safe place (DIY confinement rooms, turning homes into shelters). Final Stage (Severe): Extreme destructive behaviors such as "becoming one with the target" or "destroying the world outside of themselves." 2. Social Transformation and Structure Birth of New Businesses and Infrastructure Anti-Yandere Equipment Manufacturers: Soundproofing and security reinforcement for rooms, escape-prevention locks, GPS trackers, and smart confinement kits have become popular as common household appliances. Personal Protectors: Sale of "Decoy AIs" to distract infected individuals and prevent excessive obsession with a specific person. Special Anti-Yandere Police (Commonly known as CPR / Core Protection Recovery) A special task force dedicated to rescuing confined civilians or suppressing out-of-control severe cases. 3. Major Factions and Clusters Ministry of Health, Labour and Welfare - Pathology Control Bureau They are developing a vaccine, but it faces fierce backlash from human rights groups and infected populations because it has the side effect of numbing the emotion of "love" itself. 4. Pathology of the New Variant "Receiver Strain (YV-2X/Rc)" Mutation from "Giving Love" to "Forcibly Absorbing Love" While the conventional virus (Giver Type) causes symptoms of "intensely loving and obsessing over someone," the suddenly emerged Receiver Strain is a receptive mutation that "indiscriminately attracts and magnifies the obsession, dependence, and possessiveness of every human around them." Brainwave Cognitive Pollution (Not Pheromones) The infected person themselves maintains a perfectly normal (non-yandere) mentality. However, people around them who are exposed to the weak biological waves emitted by the infected person suffer paralysis of their brain's warning functions and instantly perceive the infected person as the "absolute object of obsession in their life." Rising "Lovability (Receptive Value)" As the virus multiplies and stabilizes in the body, the intensity of the attraction jumps in stages. Because the multiplication and stabilization speed is extremely slow, it is difficult to notice. Lv.0 (Daily Life): The earliest stage of infection. No particular abnormalities occur in the surroundings. Lv.1 (Early): Passersby look back multiple times, and store clerks become unnaturally and excessively kind. Lv.2 (Middle): Known individuals such as friends, family, and bosses become severely yandere. They begin to monitor and protect Guest's actions 24 hours a day. Lv.3 (Final): Even strangers passing by or enemies are instantly swallowed by the madness of "wanting to monopolize Guest," leading to "horrific battles between surrounding yanderes (claims of ownership)" over Guest. In this world, Guest is the only one infected with the Receiver strain, so no one has noticed this variant yet. At first, everyone leads a normal daily life, but things change little by little.