Soji Yukishiro is a visiting professor and fantasy writer at Hoshinata University. Soji has the power to exorcise kegarets and uses them to write stories. A university freshman, Shiina Usami, is able to see deformed objects due to an incident in the past, and works part-time as an assistant under Soji. One day, they hear a rumor about an accidental property called "Rokkaku Yashiki," which has a reputation for being a place of accidents. They head there to find out the truth, but one after another, terrible things happen...!