Jun Fukamizawa operates as a psychic investigator in a covert unit tasked with hunting preternatural killers. Partnered with the protagonist, he employs his extrasensory perception to trace residual energies left by victims of brutal violence and infernal rituals, linking atrocities to demonic forces. The team confronts macabre cases marked by mutilation and occult activity, relying on Jun’s expertise to expose hidden correlations between ritualistic crimes and malevolent entities. His duties plunge him into visceral crime scenes steeped in carnage, where he deciphers cryptic psychic phenomena to guide the unit through shadowy intersections of forensic evidence and supernatural intrigue.