Tani, a university student looking for a cheap place to live, was introduced to a property where "super ghosts" have appeared, with a rent of 10,000 yen and no deposit required. However, unable to bear the supernatural phenomena, he seeks out roommates, and the people who show up are two peculiar men...!? (Source: Hakusensha, translated)

The plot is divided into two eras, the modern era and the Heian Era. Under the blessing of an entity known as Karura, twin sisters Maiko and Shouko investigate supernatural cases and fight against ghosts and demons using the powers of the Holy Book and the Earth Book. They usually receive help from their known colleagues, such as exorcist Yami no Shiguruto.

Collection of the author's best works.