Based on the story of about 50 sheets of manuscript paper given as a wedding present from Kansei Takita to Miki Tori. In 19XX, someone blew up Comiket at Makuhari Messe and many people died in the attack.

In 20XX, the "Bookstore Law" was passed to prevent the decline of the print culture due to the development of computer networks and the lack of forest resources. However, this led to the monopolization of the market by huge corporations and the narrowing specialization of books. Meanwhile, the number of people who dislike books increased, and incidents related to books, such as crimes and terrorist acts, started occuring one after another. In order to combat violent crimes in bookstores, "bookstore administrators," who are allowed to carry weapons, were created.