The main character, Yuri Kozukata, works at an antique shop and is able to see the "shadow" of objects she touches and can bring people back from the "shadow world". Yuri's gift is the reason she distances herself from other people but she also uses it to help others find lost items or missing people when they come asking for help.

One day, a girl called Fuyuhi Himino enters the store with a request for Hisoka Kurosawa to find a friend of hers, Haruka Momose, who has gone missing around the area of Mt. Hikami. Unfortunately, Hisoka was currently absent at the time, so Yuri takes up the request herself instead. People with such intentions enter the forest during the witching hour when the border between the world of the living and the hidden world of the shadows becomes blurred. It is said that those ending their own life there can die a clean, "proper" death and not become trapped as ghosts between worlds when committing suicide elsewhere.