Between September 2024 and March 2026, Masataka isolates himself inside a single room in Amagasaki City, Hyogo Prefecture, embarking on an extreme self-observation experiment to deconstruct human cognition. Cut off from the external world, he treats his own mind and body as a laboratory, dissecting how the brain relies on names, faces, and language as compressed "labels" to process reality. However, intense isolation triggers severe cognitive distortions: his internal thoughts (inner speech) fracture into autonomous auditory hallucinations, while social media trends and external events transform into paranoid messages aimed directly at him. Trapped in an agonizing loop of self-blame and terror, Masataka confronts the illusion of a fixed "self." Through rigorous analytical notes and physical self-experimentation, he discovers a breakthrough countermeasure: forcibly grounding his consciousness by physically moving his mouth and vocalizing, shifting brain resourc