Yamada thought his hospital ordeal was ending, but his final challenge begins when he meets the imposing nurse Otsuka-chan and the eccentric Dr. Amamiya. Under strange medical procedures and bizarre experiments, Yamada becomes the subject of unusual tests that uncover a rare and mysterious condition. What he believed was the end of his suffering turns into a surreal continuation of his nightmare, as Dr. Amamiya’s obsession with research pushes him deeper into unsettling trials.