Mami Ryuka is a high school dropout who makes a living as an adult film critic, but her life takes a sharp turn when she becomes able to interact with the spirit world. Using subduing talismans, she begins hunting evil spirits and demons, focusing exclusively on low-grade, vulgar ghosts rather than high-ranking supernatural threats. Her requests all involve these crude and often sordid spirits, leading her to confront a range of bizarre and unsettling cases across the city.

The stories center on Mami as she investigates and exorcises various apparitions, including a phantom haunting a railway line, a self-moving doll with malicious intent, and a restless spirit lingering in a park. Each case brings her into contact with death spirits and the troubled souls of the dead, which she must confront using her talismanical powers. The tone blends supernatural horror with the gritty, mundane reality of a young woman navigating both the spirit world and her unconventional day job. As she hunts these vulgar spirits, the narrative explores the boundary between the living and the dead, focusing on low-tier hauntings rather than grand exorcisms or epic supernatural battles.