A homeless man meets a medical school student who pays him to volunteer for a surgical procedure known as trepanation, drilling a hole in his skull, which ends up giving him the ability to communicate with the dark side of people’s subconscious minds.
Feeling unhappy with his gun, Jigen is looking for the world’s best gunsmith. He finally finds out that Chiharu, who runs a watch shop, is the person he’s been seeking. Then, Jigen meets Oto, who comes to Chiharu’s shop looking for a gun. Jigen finds out about Oto's secrets and the mysterious organization that’s after her. After Oto is kidnapped, Jigen gets into a desperate battle to save her.
One day a mysterious box arrived and a curse began to spread all over. The source of the box is 'Jukai Village'. The village is hidden in Jukai Forest, a suicide spot that once you enter it, you can never come out.
