Haruto Hatsushima, a genius forensic pathologist and former neurosurgeon, works at Tokyo’s National Forensic Autopsy Center, solving mysterious deaths caused by rare, undetectable diseases. Hailed as “a genius chosen by God,” he treats each case as a “Quiz from God,” uncovering hidden truths behind society’s darkest tragedies. Yet Haruto harbors secrets of his own: a mysterious illness slowly consuming him and a hidden truth buried in his past.