After a life-altering event that strips her of the capacity for fear, a young woman named Kanata becomes obsessed with the supernatural. She roams the everyday spaces of the city—parks, emergency stairwells, the narrow gaps between buildings—searching for ghosts that might finally make her heart freeze. Her pursuit is detached and clinical; she actively seeks out the most disturbing apparitions, hoping to find a terror that can truly reach her.

Each chapter follows Kanata as she encounters a different haunting, often observing from the sidelines while ordinary people stumble into paranormal situations. A woman dragging a dead dog repeats a string of numbers that turn out to be a license plate. A teacher investigates a missing student and finds a cursed piece of playground equipment. A streamer trying to prove her psychic abilities attracts something far worse. These vignettes are grim and unresolved, emphasizing that the living can rarely escape once they brush against the other side.

As the story progresses, a larger narrative emerges around the town of Momokawa, where a series of abnormal incidents suggest that something ancient and malevolent has taken hold. Kanata realizes that the town itself is saturated with a pervasive supernatural presence—something that was once a river god, now twisted and hungry. A psychic named Kyo arrives to help a man trapped in his own home, but even his abilities prove insufficient against the relentless force. The manga builds toward a confrontation in which Kanata, still unable to feel fear, must face the possibility that the ghosts she chases are not just objects of curiosity but threats that cannot be outrun. The series concludes with a sense that the boundary between the living and the dead has permanently blurred, leaving some characters trapped and others drawn deeper into the darkness.